231575680 has 64 divisors (see below), whose sum is σ = 632710080. Its totient is φ = 79395840.

The previous prime is 231575677. The next prime is 231575689. The reversal of 231575680 is 86575132.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (231575689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21366 + ... + 30325.

It is an arithmetic number, because the mean of its divisors is an integer number (9886095).

Almost surely, 2^231575680 is an apocalyptic number.

231575680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231575680 is an abundant number, since it is smaller than the sum of its proper divisors (401134400).

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

231575680 is an equidigital number, since it uses as much as digits as its factorization.

231575680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51717 (or 51705 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 231575680 is about 15217.6108505902. The cubic root of 231575680 is about 614.0885257526.

The spelling of 231575680 in words is "two hundred thirty-one million, five hundred seventy-five thousand, six hundred eighty".