2872156 has 24 divisors (see below), whose sum is σ = 5833856. Its totient is φ = 1211760.

The previous prime is 2872153. The next prime is 2872183. The reversal of 2872156 is 6512782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872151) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1111 + ... + 2641.

2^2872156 is an apocalyptic number.

It is an amenable number.

2872156 is an abundant number, since it is smaller than the sum of its proper divisors (2961700).

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

2872156 is a wasteful number, since it uses less digits than its factorization.

2872156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609 (or 1607 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 2872156 is about 1694.7436384303. The cubic root of 2872156 is about 142.1464468124.

The spelling of 2872156 in words is "two million, eight hundred seventy-two thousand, one hundred fifty-six".