231457530 has 32 divisors (see below), whose sum is σ = 563793984. Its totient is φ = 60800256.

The previous prime is 231457529. The next prime is 231457549. The reversal of 231457530 is 35754132.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55567 + ... + 59586.

It is an arithmetic number, because the mean of its divisors is an integer number (17618562).

Almost surely, 2^231457530 is an apocalyptic number.

231457530 is an abundant number, since it is smaller than the sum of its proper divisors (332336454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231457530 is a wasteful number, since it uses less digits than its factorization.

231457530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115230.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 231457530 is about 15213.7283398909. The cubic root of 231457530 is about 613.9840719200.

The spelling of 231457530 in words is "two hundred thirty-one million, four hundred fifty-seven thousand, five hundred thirty".