2215172 has 12 divisors (see below), whose sum is σ = 4080720. Its totient is φ = 1049256.

The previous prime is 2215163. The next prime is 2215177. The reversal of 2215172 is 2715122.

It is not an unprimeable number, because it can be changed into a prime (2215177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14498 + ... + 14649.

It is an arithmetic number, because the mean of its divisors is an integer number (340060).

2^2215172 is an apocalyptic number.

It is an amenable number.

2215172 is a deficient number, since it is larger than the sum of its proper divisors (1865548).

2215172 is a wasteful number, since it uses less digits than its factorization.

2215172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29170 (or 29168 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 2215172 is about 1488.3453900221. The cubic root of 2215172 is about 130.3574384037.

The spelling of 2215172 in words is "two million, two hundred fifteen thousand, one hundred seventy-two".