2139576715 has 4 divisors (see below), whose sum is σ = 2567492064. Its totient is φ = 1711661368.

The previous prime is 2139576709. The next prime is 2139576743. The reversal of 2139576715 is 5176759312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2139576715 - 2⁵ = 2139576683 is a prime.

It is a Duffinian number.

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, 213957667 + ... + 213957676.

It is an arithmetic number, because the mean of its divisors is an integer number (641873016).

Almost surely, 2^2139576715 is an apocalyptic number.

2139576715 is a deficient number, since it is larger than the sum of its proper divisors (427915349).

2139576715 is an equidigital number, since it uses as much as digits as its factorization.

2139576715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427915348.

The product of its digits is 396900, while the sum is 46.

The square root of 2139576715 is about 46255.5587470306. The cubic root of 2139576715 is about 1288.5737727783.

The spelling of 2139576715 in words is "two billion, one hundred thirty-nine million, five hundred seventy-six thousand, seven hundred fifteen".