331974563 has 4 divisors (see below), whose sum is σ = 338238288. Its totient is φ = 325710840.

The previous prime is 331974551. The next prime is 331974607. The reversal of 331974563 is 365479133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365479133 = 2999 ⋅121867.

It is a cyclic number.

It is not a de Polignac number, because 331974563 - 2¹⁰ = 331973539 is a prime.

It is a super-2 number, since 2×331974563² = 220414220958081938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331974563.

It is not an unprimeable number, because it can be changed into a prime (331974163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3131783 + ... + 3131888.

It is an arithmetic number, because the mean of its divisors is an integer number (84559572).

Almost surely, 2^331974563 is an apocalyptic number.

331974563 is a deficient number, since it is larger than the sum of its proper divisors (6263725).

331974563 is an equidigital number, since it uses as much as digits as its factorization.

331974563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263724.

The product of its digits is 204120, while the sum is 41.

The square root of 331974563 is about 18220.1691265476. The cubic root of 331974563 is about 692.4178725909.

The spelling of 331974563 in words is "three hundred thirty-one million, nine hundred seventy-four thousand, five hundred sixty-three".