15132520717 has 2 divisors, whose sum is σ = 15132520718. Its totient is φ = 15132520716.

The previous prime is 15132520679. The next prime is 15132520723. The reversal of 15132520717 is 71702523151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15115718916 + 16801801 = 122946^2 + 4099^2 .

It is a cyclic number.

It is not a de Polignac number, because 15132520717 - 2¹⁵ = 15132487949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15132580717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7566260358 + 7566260359.

It is an arithmetic number, because the mean of its divisors is an integer number (7566260359).

Almost surely, 2^15132520717 is an apocalyptic number.

It is an amenable number.

15132520717 is a deficient number, since it is larger than the sum of its proper divisors (1).

15132520717 is an equidigital number, since it uses as much as digits as its factorization.

15132520717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 15132520717 in words is "fifteen billion, one hundred thirty-two million, five hundred twenty thousand, seven hundred seventeen".