2149981132 has 12 divisors (see below), whose sum is σ = 4051887616. Its totient is φ = 992298960.

The previous prime is 2149981111. The next prime is 2149981147. The reversal of 2149981132 is 2311899412.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 20672844 + ... + 20672947.

Almost surely, 2^2149981132 is an apocalyptic number.

It is an amenable number.

2149981132 is a deficient number, since it is larger than the sum of its proper divisors (1901906484).

2149981132 is a wasteful number, since it uses less digits than its factorization.

2149981132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41345808 (or 41345806 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 2149981132 is about 46367.8890181557. The cubic root of 2149981132 is about 1290.6591051239.

The spelling of 2149981132 in words is "two billion, one hundred forty-nine million, nine hundred eighty-one thousand, one hundred thirty-two".