231057045 has 48 divisors (see below), whose sum is σ = 417177072. Its totient is φ = 118195200.

The previous prime is 231057041. The next prime is 231057061. The reversal of 231057045 is 540750132.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 715716 + 230341329 = 846^2 + 15177^2 .

It is not a de Polignac number, because 231057045 - 2² = 231057041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231057041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120595 + ... + 122495.

It is an arithmetic number, because the mean of its divisors is an integer number (8691189).

Almost surely, 2^231057045 is an apocalyptic number.

It is an amenable number.

231057045 is a deficient number, since it is larger than the sum of its proper divisors (186120027).

231057045 is a wasteful number, since it uses less digits than its factorization.

231057045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022 (or 2019 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 231057045 is about 15200.5606804486. The cubic root of 231057045 is about 613.6297472089.

The spelling of 231057045 in words is "two hundred thirty-one million, fifty-seven thousand, forty-five".