215251160 has 32 divisors (see below), whose sum is σ = 486088560. Its totient is φ = 85785216.

The previous prime is 215251159. The next prime is 215251177. The reversal of 215251160 is 61152512.

It is a happy number.

215251160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1367 + ... + 20793.

Almost surely, 2^215251160 is an apocalyptic number.

215251160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215251160 is an abundant number, since it is smaller than the sum of its proper divisors (270837400).

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

215251160 is a wasteful number, since it uses less digits than its factorization.

215251160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19715 (or 19711 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 215251160 is about 14671.4402837622. The cubic root of 215251160 is about 599.3058268120.

The spelling of 215251160 in words is "two hundred fifteen million, two hundred fifty-one thousand, one hundred sixty".