215315752 has 16 divisors (see below), whose sum is σ = 424965600. Its totient is φ = 101991600.

The previous prime is 215315741. The next prime is 215315767. The reversal of 215315752 is 257513512.

215315752 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, 708124 + ... + 708427.

It is an arithmetic number, because the mean of its divisors is an integer number (26560350).

Almost surely, 2^215315752 is an apocalyptic number.

It is an amenable number.

215315752 is a deficient number, since it is larger than the sum of its proper divisors (209649848).

215315752 is a wasteful number, since it uses less digits than its factorization.

215315752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416576 (or 1416572 counting only the distinct ones).

The product of its digits is 10500, while the sum is 31.

The square root of 215315752 is about 14673.6414021878. The cubic root of 215315752 is about 599.3657668538.

The spelling of 215315752 in words is "two hundred fifteen million, three hundred fifteen thousand, seven hundred fifty-two".