12947513039 has 4 divisors (see below), whose sum is σ = 13103507256. Its totient is φ = 12791518824.

The previous prime is 12947513023. The next prime is 12947513057. The reversal of 12947513039 is 93031574921.

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 12947513039 - 2⁴ = 12947513023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12947513639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77996984 + ... + 77997149.

It is an arithmetic number, because the mean of its divisors is an integer number (3275876814).

Almost surely, 2^12947513039 is an apocalyptic number.

12947513039 is a deficient number, since it is larger than the sum of its proper divisors (155994217).

12947513039 is an equidigital number, since it uses as much as digits as its factorization.

12947513039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155994216.

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 12947513039 in words is "twelve billion, nine hundred forty-seven million, five hundred thirteen thousand, thirty-nine".