215064315 has 20 divisors (see below), whose sum is σ = 385523424. Its totient is φ = 114700752.

The previous prime is 215064299. The next prime is 215064347. The reversal of 215064315 is 513460512.

215064315 is a `hidden beast` number, since 2 + 1 + 5 + 0 + 643 + 15 = 666.

It is not a de Polignac number, because 215064315 - 2⁴ = 215064299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 265107 + ... + 265916.

Almost surely, 2^215064315 is an apocalyptic number.

215064315 is a deficient number, since it is larger than the sum of its proper divisors (170459109).

215064315 is an equidigital number, since it uses as much as digits as its factorization.

215064315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531040 (or 531031 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 215064315 is about 14665.0712579244. The cubic root of 215064315 is about 599.1323709712.

The spelling of 215064315 in words is "two hundred fifteen million, sixty-four thousand, three hundred fifteen".