2639015139 has 8 divisors (see below), whose sum is σ = 3542302800. Its totient is φ = 1747535456.

The previous prime is 2639015131. The next prime is 2639015149. The reversal of 2639015139 is 9315109362.

2639015139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2639015139 - 2³ = 2639015131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2639015097 and 2639015106.

It is not an unprimeable number, because it can be changed into a prime (2639015131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2951472 + ... + 2952365.

It is an arithmetic number, because the mean of its divisors is an integer number (442787850).

Almost surely, 2^2639015139 is an apocalyptic number.

2639015139 is a deficient number, since it is larger than the sum of its proper divisors (903287661).

2639015139 is a wasteful number, since it uses less digits than its factorization.

2639015139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903989.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 2639015139 is about 51371.3455050576. The cubic root of 2639015139 is about 1381.9127608301.

The spelling of 2639015139 in words is "two billion, six hundred thirty-nine million, fifteen thousand, one hundred thirty-nine".