215013875 has 16 divisors (see below), whose sum is σ = 284124672. Its totient is φ = 161891200.

The previous prime is 215013871. The next prime is 215013947. The reversal of 215013875 is 578310512.

It is not a de Polignac number, because 215013875 - 2² = 215013871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215013871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48467 + ... + 52716.

It is an arithmetic number, because the mean of its divisors is an integer number (17757792).

Almost surely, 2^215013875 is an apocalyptic number.

215013875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

215013875 is a deficient number, since it is larger than the sum of its proper divisors (69110797).

215013875 is a wasteful number, since it uses less digits than its factorization.

215013875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101215 (or 101205 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 215013875 is about 14663.3514245550. The cubic root of 215013875 is about 599.0855282401.

The spelling of 215013875 in words is "two hundred fifteen million, thirteen thousand, eight hundred seventy-five".