2139001264 has 20 divisors (see below), whose sum is σ = 4206172504. Its totient is φ = 1053537408.

The previous prime is 2139001259. The next prime is 2139001289. The reversal of 2139001264 is 4621009312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996597 + ... + 998740.

Almost surely, 2^2139001264 is an apocalyptic number.

It is an amenable number.

2139001264 is a deficient number, since it is larger than the sum of its proper divisors (2067171240).

2139001264 is a wasteful number, since it uses less digits than its factorization.

2139001264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995412 (or 1995406 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2139001264 is about 46249.3379844512. The cubic root of 2139001264 is about 1288.4582394037.

The spelling of 2139001264 in words is "two billion, one hundred thirty-nine million, one thousand, two hundred sixty-four".