15157253509 has 2 divisors, whose sum is σ = 15157253510. Its totient is φ = 15157253508.

The previous prime is 15157253479. The next prime is 15157253513. The reversal of 15157253509 is 90535275151.

15157253509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10707696484 + 4449557025 = 103478^2 + 66705^2 .

It is a cyclic number.

It is not a de Polignac number, because 15157253509 - 2⁹ = 15157252997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15157253539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7578626754 + 7578626755.

It is an arithmetic number, because the mean of its divisors is an integer number (7578626755).

Almost surely, 2^15157253509 is an apocalyptic number.

It is an amenable number.

15157253509 is a deficient number, since it is larger than the sum of its proper divisors (1).

15157253509 is an equidigital number, since it uses as much as digits as its factorization.

15157253509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236250, while the sum is 43.

The spelling of 15157253509 in words is "fifteen billion, one hundred fifty-seven million, two hundred fifty-three thousand, five hundred nine".