297131945 has 16 divisors (see below), whose sum is σ = 391158720. Its totient is φ = 214881600.

The previous prime is 297131927. The next prime is 297131951. The reversal of 297131945 is 549131792.

It is not a de Polignac number, because 297131945 - 2⁶ = 297131881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5246 + ... + 24935.

It is an arithmetic number, because the mean of its divisors is an integer number (24447420).

Almost surely, 2^297131945 is an apocalyptic number.

It is an amenable number.

297131945 is a deficient number, since it is larger than the sum of its proper divisors (94026775).

297131945 is a wasteful number, since it uses less digits than its factorization.

297131945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30376.

The product of its digits is 68040, while the sum is 41.

The square root of 297131945 is about 17237.5156272591. The cubic root of 297131945 is about 667.2928149179.

The spelling of 297131945 in words is "two hundred ninety-seven million, one hundred thirty-one thousand, nine hundred forty-five".