215120704 has 28 divisors (see below), whose sum is σ = 427353984. Its totient is φ = 107441024.

The previous prime is 215120681. The next prime is 215120723. The reversal of 215120704 is 407021512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96369 + ... + 98575.

Almost surely, 2^215120704 is an apocalyptic number.

It is an amenable number.

215120704 is a deficient number, since it is larger than the sum of its proper divisors (212233280).

215120704 is a wasteful number, since it uses less digits than its factorization.

215120704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742 (or 3732 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 215120704 is about 14666.9936933238. The cubic root of 215120704 is about 599.1847297628.

The spelling of 215120704 in words is "two hundred fifteen million, one hundred twenty thousand, seven hundred four".