2154656 has 24 divisors (see below), whose sum is σ = 4848480. Its totient is φ = 923328.

The previous prime is 2154643. The next prime is 2154667. The reversal of 2154656 is 6564512.

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, 4586 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (202020).

2^2154656 is an apocalyptic number.

It is an amenable number.

2154656 is an abundant number, since it is smaller than the sum of its proper divisors (2693824).

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

2154656 is an equidigital number, since it uses as much as digits as its factorization.

2154656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9636 (or 9628 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 2154656 is about 1467.8746540492. The cubic root of 2154656 is about 129.1593887447.

The spelling of 2154656 in words is "two million, one hundred fifty-four thousand, six hundred fifty-six".