2172516 has 24 divisors (see below), whose sum is σ = 5100480. Its totient is φ = 719712.

The previous prime is 2172497. The next prime is 2172539. The reversal of 2172516 is 6152712.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1905 + ... + 2823.

It is an arithmetic number, because the mean of its divisors is an integer number (212520).

2^2172516 is an apocalyptic number.

It is an amenable number.

2172516 is an abundant number, since it is smaller than the sum of its proper divisors (2927964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2172516 is a wasteful number, since it uses less digits than its factorization.

2172516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1121 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 2172516 is about 1473.9457249166. The cubic root of 2172516 is about 129.5152757480.

The spelling of 2172516 in words is "two million, one hundred seventy-two thousand, five hundred sixteen".