15250138613 has 2 divisors, whose sum is σ = 15250138614. Its totient is φ = 15250138612.

The previous prime is 15250138597. The next prime is 15250138793. The reversal of 15250138613 is 31683105251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10168302244 + 5081836369 = 100838^2 + 71287^2 .

It is a cyclic number.

It is not a de Polignac number, because 15250138613 - 2⁴ = 15250138597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15250138213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7625069306 + 7625069307.

It is an arithmetic number, because the mean of its divisors is an integer number (7625069307).

Almost surely, 2^15250138613 is an apocalyptic number.

It is an amenable number.

15250138613 is a deficient number, since it is larger than the sum of its proper divisors (1).

15250138613 is an equidigital number, since it uses as much as digits as its factorization.

15250138613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 15250138613 in words is "fifteen billion, two hundred fifty million, one hundred thirty-eight thousand, six hundred thirteen".