215948115 has 24 divisors (see below), whose sum is σ = 376487280. Its totient is φ = 114502464.

The previous prime is 215948099. The next prime is 215948147. The reversal of 215948115 is 511849512.

It is not a de Polignac number, because 215948115 - 2⁴ = 215948099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215948115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6085 + ... + 21654.

It is an arithmetic number, because the mean of its divisors is an integer number (15686970).

Almost surely, 2^215948115 is an apocalyptic number.

215948115 is a deficient number, since it is larger than the sum of its proper divisors (160539165).

215948115 is a wasteful number, since it uses less digits than its factorization.

215948115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27923 (or 27920 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The square root of 215948115 is about 14695.1731871387. The cubic root of 215948115 is about 599.9519544862.

The spelling of 215948115 in words is "two hundred fifteen million, nine hundred forty-eight thousand, one hundred fifteen".