15138596202731 has 2 divisors, whose sum is σ = 15138596202732. Its totient is φ = 15138596202730.

The previous prime is 15138596202713. The next prime is 15138596202749. The reversal of 15138596202731 is 13720269583151.

Together with previous prime (15138596202713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (15138596202713) and next prime (15138596202749).

It is a cyclic number.

It is not a de Polignac number, because 15138596202731 - 2²⁶ = 15138529093867 is a prime.

It is a super-2 number, since 2×15138596202731² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15138596202761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7569298101365 + 7569298101366.

It is an arithmetic number, because the mean of its divisors is an integer number (7569298101366).

Almost surely, 2^{15138596202731} is an apocalyptic number.

15138596202731 is a deficient number, since it is larger than the sum of its proper divisors (1).

15138596202731 is an equidigital number, since it uses as much as digits as its factorization.

15138596202731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 15138596202731 in words is "fifteen trillion, one hundred thirty-eight billion, five hundred ninety-six million, two hundred two thousand, seven hundred thirty-one".