146445

146445 is a number in the set of natural numbers. It is an odd number, meaning it is not divisible by 2. The number 146445 can be expressed as a sum of two squares in two different ways: 146445 = 382^2 + 1^2 and 146445 = 381^2 + 11^2. This makes it a sum of two squares number, which is a positive integer that can be expressed as the sum of two squares.

The prime factorization of 146445 is 3^2 5^2 17^2. This means that 146445 is a perfect square, as it is the square of 382. It is also a happy number, meaning that the sequence of numbers obtained by repeatedly summing the squares of its digits eventually reaches 1.

In the decimal system, 146445 is written as one hundred forty-six thousand, four hundred forty-five. It is also the sum of the first 382 prime numbers, making it a primeval number. Additionally, 146445 is a sphenic number, meaning it is the product of three distinct prime numbers.

The number 146445 appears in the sequence of triangular numbers, where it is the 382nd triangular number. It is also the sum of the first 382 natural numbers. In the Fibonacci sequence, 146445 is the 28th Fibonacci number.