231375580 has 24 divisors (see below), whose sum is σ = 494126640. Its totient is φ = 90981120.

The previous prime is 231375577. The next prime is 231375583. The reversal of 231375580 is 85573132.

231375580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231375577) and next prime (231375583).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231375583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96861 + ... + 99220.

It is an arithmetic number, because the mean of its divisors is an integer number (20588610).

Almost surely, 2^231375580 is an apocalyptic number.

231375580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231375580 is an abundant number, since it is smaller than the sum of its proper divisors (262751060).

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

231375580 is a wasteful number, since it uses less digits than its factorization.

231375580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196149 (or 196147 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 231375580 is about 15211.0348102948. The cubic root of 231375580 is about 613.9116008362.

The spelling of 231375580 in words is "two hundred thirty-one million, three hundred seventy-five thousand, five hundred eighty".