231061580 has 12 divisors (see below), whose sum is σ = 485229360. Its totient is φ = 92424624.

The previous prime is 231061577. The next prime is 231061643. The reversal of 231061580 is 85160132.

231061580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5776520 + ... + 5776559.

It is an arithmetic number, because the mean of its divisors is an integer number (40435780).

Almost surely, 2^231061580 is an apocalyptic number.

231061580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231061580 is an abundant number, since it is smaller than the sum of its proper divisors (254167780).

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

231061580 is a wasteful number, since it uses less digits than its factorization.

231061580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11553088 (or 11553086 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 231061580 is about 15200.7098518457. The cubic root of 231061580 is about 613.6337617914.

The spelling of 231061580 in words is "two hundred thirty-one million, sixty-one thousand, five hundred eighty".