331490523 has 32 divisors (see below), whose sum is σ = 545036800. Its totient is φ = 174514176.

The previous prime is 331490519. The next prime is 331490563. The reversal of 331490523 is 325094133.

It is not a de Polignac number, because 331490523 - 2² = 331490519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331490563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209148 + ... + 210726.

It is an arithmetic number, because the mean of its divisors is an integer number (17032400).

Almost surely, 2^331490523 is an apocalyptic number.

331490523 is a deficient number, since it is larger than the sum of its proper divisors (213546277).

331490523 is a wasteful number, since it uses less digits than its factorization.

331490523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 331490523 is about 18206.8811991511. The cubic root of 331490523 is about 692.0811791507.

The spelling of 331490523 in words is "three hundred thirty-one million, four hundred ninety thousand, five hundred twenty-three".