215125160 has 32 divisors (see below), whose sum is σ = 490668840. Its totient is φ = 84870144.

The previous prime is 215125159. The next prime is 215125171. The reversal of 215125160 is 61521512.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 206956996 + 8168164 = 14386^2 + 2858^2 .

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, 33917 + ... + 39756.

Almost surely, 2^215125160 is an apocalyptic number.

215125160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215125160 is an abundant number, since it is smaller than the sum of its proper divisors (275543680).

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

215125160 is a wasteful number, since it uses less digits than its factorization.

215125160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73757 (or 73753 counting only the distinct ones).

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

The square root of 215125160 is about 14667.1455982410. The cubic root of 215125160 is about 599.1888668956.

Adding to 215125160 its reverse (61521512), we get a palindrome (276646672).

The spelling of 215125160 in words is "two hundred fifteen million, one hundred twenty-five thousand, one hundred sixty".