215104364 has 6 divisors (see below), whose sum is σ = 376432644. Its totient is φ = 107552180.

The previous prime is 215104333. The next prime is 215104399. The reversal of 215104364 is 463401512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26888042 + ... + 26888049.

It is an arithmetic number, because the mean of its divisors is an integer number (62738774).

Almost surely, 2^215104364 is an apocalyptic number.

It is an amenable number.

215104364 is a deficient number, since it is larger than the sum of its proper divisors (161328280).

215104364 is a wasteful number, since it uses less digits than its factorization.

215104364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53776095 (or 53776093 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 215104364 is about 14666.4366497115. The cubic root of 215104364 is about 599.1695585493.

Adding to 215104364 its reverse (463401512), we get a palindrome (678505876).

The spelling of 215104364 in words is "two hundred fifteen million, one hundred four thousand, three hundred sixty-four".