215570150 has 12 divisors (see below), whose sum is σ = 400960572. Its totient is φ = 86228040.

The previous prime is 215570123. The next prime is 215570171. The reversal of 215570150 is 51075512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2155652 + ... + 2155751.

It is an arithmetic number, because the mean of its divisors is an integer number (33413381).

Almost surely, 2^215570150 is an apocalyptic number.

215570150 is a deficient number, since it is larger than the sum of its proper divisors (185390422).

215570150 is a wasteful number, since it uses less digits than its factorization.

215570150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311415 (or 4311410 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 215570150 is about 14682.3073799727. The cubic root of 215570150 is about 599.6017264295.

The spelling of 215570150 in words is "two hundred fifteen million, five hundred seventy thousand, one hundred fifty".