2149156882 has 16 divisors (see below), whose sum is σ = 3336341400. Its totient is φ = 1037075200.

The previous prime is 2149156873. The next prime is 2149156897. The reversal of 2149156882 is 2886519412.

It is a Cunningham number, because it is equal to 46359²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 2149156881 + 1 = 46359^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155844 + ... + 169072.

Almost surely, 2^2149156882 is an apocalyptic number.

2149156882 is a deficient number, since it is larger than the sum of its proper divisors (1187184518).

2149156882 is a wasteful number, since it uses less digits than its factorization.

2149156882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16061.

The product of its digits is 276480, while the sum is 46.

The square root of 2149156882 is about 46359.0000107854. Note that the first 4 decimals coincide. The cubic root of 2149156882 is about 1290.4941483670.

The spelling of 2149156882 in words is "two billion, one hundred forty-nine million, one hundred fifty-six thousand, eight hundred eighty-two".