12137615393 has 4 divisors (see below), whose sum is σ = 12145160580. Its totient is φ = 12130070208.

The previous prime is 12137615381. The next prime is 12137615429. The reversal of 12137615393 is 39351673121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6082908049 + 6054707344 = 77993^2 + 77812^2 .

It is a cyclic number.

It is not a de Polignac number, because 12137615393 - 2⁴ = 12137615377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12137615393.

It is not an unprimeable number, because it can be changed into a prime (12137615363) 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, 3770180 + ... + 3773397.

It is an arithmetic number, because the mean of its divisors is an integer number (3036290145).

Almost surely, 2^12137615393 is an apocalyptic number.

It is an amenable number.

12137615393 is a deficient number, since it is larger than the sum of its proper divisors (7545187).

12137615393 is an equidigital number, since it uses as much as digits as its factorization.

12137615393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7545186.

The product of its digits is 102060, while the sum is 41.

The spelling of 12137615393 in words is "twelve billion, one hundred thirty-seven million, six hundred fifteen thousand, three hundred ninety-three".