2981156 has 12 divisors (see below), whose sum is σ = 5229168. Its totient is φ = 1487112.

The previous prime is 2981149. The next prime is 2981159. The reversal of 2981156 is 6511892.

It is not an unprimeable number, because it can be changed into a prime (2981159) 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, 2675 + ... + 3621.

It is an arithmetic number, because the mean of its divisors is an integer number (435764).

2^2981156 is an apocalyptic number.

It is an amenable number.

2981156 is a deficient number, since it is larger than the sum of its proper divisors (2248012).

2981156 is a wasteful number, since it uses less digits than its factorization.

2981156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1736 counting only the distinct ones).

The product of its digits is 4320, while the sum is 32.

The square root of 2981156 is about 1726.6024441081. The cubic root of 2981156 is about 143.9223475365.

The spelling of 2981156 in words is "two million, nine hundred eighty-one thousand, one hundred fifty-six".