15131387813459 has 2 divisors, whose sum is σ = 15131387813460. Its totient is φ = 15131387813458.

The previous prime is 15131387813429. The next prime is 15131387813537. The reversal of 15131387813459 is 95431878313151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15131387813459 - 2²⁸ = 15131119378003 is a prime.

It is a super-2 number, since 2×15131387813459² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15131387813398 and 15131387813407.

It is not a weakly prime, because it can be changed into another prime (15131387813429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7565693906729 + 7565693906730.

It is an arithmetic number, because the mean of its divisors is an integer number (7565693906730).

Almost surely, 2^{15131387813459} is an apocalyptic number.

15131387813459 is a deficient number, since it is larger than the sum of its proper divisors (1).

15131387813459 is an equidigital number, since it uses as much as digits as its factorization.

15131387813459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 59.

The spelling of 15131387813459 in words is "fifteen trillion, one hundred thirty-one billion, three hundred eighty-seven million, eight hundred thirteen thousand, four hundred fifty-nine".