2912172 has 12 divisors (see below), whose sum is σ = 6795096. Its totient is φ = 970720.

The previous prime is 2912141. The next prime is 2912197. The reversal of 2912172 is 2712192.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121329 + ... + 121352.

It is an arithmetic number, because the mean of its divisors is an integer number (566258).

2^2912172 is an apocalyptic number.

It is an amenable number.

2912172 is an abundant number, since it is smaller than the sum of its proper divisors (3882924).

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

2912172 is a wasteful number, since it uses less digits than its factorization.

2912172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242688 (or 242686 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 2912172 is about 1706.5087166493. The cubic root of 2912172 is about 142.8035511361.

The spelling of 2912172 in words is "two million, nine hundred twelve thousand, one hundred seventy-two".