331452243 has 28 divisors (see below), whose sum is σ = 498906408. Its totient is φ = 220099680.

The previous prime is 331452239. The next prime is 331452269. The reversal of 331452243 is 342254133.

It is not a de Polignac number, because 331452243 - 2² = 331452239 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (331452203) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 223063 + ... + 224543.

It is an arithmetic number, because the mean of its divisors is an integer number (17818086).

Almost surely, 2^331452243 is an apocalyptic number.

331452243 is a deficient number, since it is larger than the sum of its proper divisors (167454165).

331452243 is an equidigital number, since it uses as much as digits as its factorization.

331452243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806 (or 1791 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 331452243 is about 18205.8299179137. The cubic root of 331452243 is about 692.0545379795.

The spelling of 331452243 in words is "three hundred thirty-one million, four hundred fifty-two thousand, two hundred forty-three".