2172522 has 16 divisors (see below), whose sum is σ = 4740192. Its totient is φ = 658320.

The previous prime is 2172497. The next prime is 2172539. The reversal of 2172522 is 2252712.

It is a happy number.

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, 16393 + ... + 16524.

It is an arithmetic number, because the mean of its divisors is an integer number (296262).

2^2172522 is an apocalyptic number.

2172522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2172522 is an abundant number, since it is smaller than the sum of its proper divisors (2567670).

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

2172522 is a wasteful number, since it uses less digits than its factorization.

2172522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32933.

The product of its digits is 560, while the sum is 21.

The square root of 2172522 is about 1473.9477602683. The cubic root of 2172522 is about 129.5153949786.

The spelling of 2172522 in words is "two million, one hundred seventy-two thousand, five hundred twenty-two".