231045075 has 48 divisors (see below), whose sum is σ = 428767200. Its totient is φ = 121968000.

The previous prime is 231045071. The next prime is 231045083. The reversal of 231045075 is 570540132.

It is a happy number.

It is not a de Polignac number, because 231045075 - 2² = 231045071 is a prime.

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 (231045071) 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, 66481 + ... + 69869.

It is an arithmetic number, because the mean of its divisors is an integer number (8932650).

Almost surely, 2^231045075 is an apocalyptic number.

231045075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231045075 is a deficient number, since it is larger than the sum of its proper divisors (197722125).

231045075 is a wasteful number, since it uses less digits than its factorization.

231045075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509 (or 3498 counting only the distinct ones).

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

The square root of 231045075 is about 15200.1669398727. The cubic root of 231045075 is about 613.6191505834.

The spelling of 231045075 in words is "two hundred thirty-one million, forty-five thousand, seventy-five".