2154872 has 16 divisors (see below), whose sum is σ = 4171200. Its totient is φ = 1042560.

The previous prime is 2154871. The next prime is 2154881. The reversal of 2154872 is 2784512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4097 + ... + 4592.

It is an arithmetic number, because the mean of its divisors is an integer number (260700).

2^2154872 is an apocalyptic number.

It is an amenable number.

2154872 is a deficient number, since it is larger than the sum of its proper divisors (2016328).

2154872 is a wasteful number, since it uses less digits than its factorization.

2154872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8726 (or 8722 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 2154872 is about 1467.9482279699. The cubic root of 2154872 is about 129.1637045916.

The spelling of 2154872 in words is "two million, one hundred fifty-four thousand, eight hundred seventy-two".