2157612 has 12 divisors (see below), whose sum is σ = 5034456. Its totient is φ = 719200.

The previous prime is 2157587. The next prime is 2157641. The reversal of 2157612 is 2167512.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89889 + ... + 89912.

It is an arithmetic number, because the mean of its divisors is an integer number (419538).

2^2157612 is an apocalyptic number.

It is an amenable number.

2157612 is an abundant number, since it is smaller than the sum of its proper divisors (2876844).

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

2157612 is a wasteful number, since it uses less digits than its factorization.

2157612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179808 (or 179806 counting only the distinct ones).

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

The square root of 2157612 is about 1468.8812069054. The cubic root of 2157612 is about 129.2184268912.

The spelling of 2157612 in words is "two million, one hundred fifty-seven thousand, six hundred twelve".