2139037815 has 16 divisors (see below), whose sum is σ = 3424242528. Its totient is φ = 1140226176.

The previous prime is 2139037807. The next prime is 2139037819. The reversal of 2139037815 is 5187309312.

It is not a de Polignac number, because 2139037815 - 2³ = 2139037807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139037819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6544 + ... + 65733.

It is an arithmetic number, because the mean of its divisors is an integer number (214015158).

Almost surely, 2^2139037815 is an apocalyptic number.

2139037815 is a deficient number, since it is larger than the sum of its proper divisors (1285204713).

2139037815 is a wasteful number, since it uses less digits than its factorization.

2139037815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74258.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 2139037815 is about 46249.7331343652. The cubic root of 2139037815 is about 1288.4655783691.

The spelling of 2139037815 in words is "two billion, one hundred thirty-nine million, thirty-seven thousand, eight hundred fifteen".