2139694552 has 32 divisors (see below), whose sum is σ = 4197251520. Its totient is φ = 1021538560.

The previous prime is 2139694547. The next prime is 2139694561. The reversal of 2139694552 is 2554969312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53983 + ... + 84814.

It is an arithmetic number, because the mean of its divisors is an integer number (131164110).

Almost surely, 2^2139694552 is an apocalyptic number.

It is an amenable number.

2139694552 is a deficient number, since it is larger than the sum of its proper divisors (2057556968).

2139694552 is a wasteful number, since it uses less digits than its factorization.

2139694552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138891 (or 138887 counting only the distinct ones).

The product of its digits is 583200, while the sum is 46.

The square root of 2139694552 is about 46256.8324899144. The cubic root of 2139694552 is about 1288.5974283732.

The spelling of 2139694552 in words is "two billion, one hundred thirty-nine million, six hundred ninety-four thousand, five hundred fifty-two".