1312739015 has 16 divisors (see below), whose sum is σ = 1811802432. Its totient is φ = 894426624.

The previous prime is 1312739003. The next prime is 1312739041. The reversal of 1312739015 is 5109372131.

It is not a de Polignac number, because 1312739015 - 2¹⁰ = 1312737991 is a prime.

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 113954 + ... + 124943.

It is an arithmetic number, because the mean of its divisors is an integer number (113237652).

Almost surely, 2^1312739015 is an apocalyptic number.

1312739015 is a deficient number, since it is larger than the sum of its proper divisors (499063417).

1312739015 is a wasteful number, since it uses less digits than its factorization.

1312739015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239066.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 1312739015 is about 36231.7404357008. The cubic root of 1312739015 is about 1094.9462425740.

The spelling of 1312739015 in words is "one billion, three hundred twelve million, seven hundred thirty-nine thousand, fifteen".