15147257017 has 2 divisors, whose sum is σ = 15147257018. Its totient is φ = 15147257016.

The previous prime is 15147256987. The next prime is 15147257053. The reversal of 15147257017 is 71075274151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12548704441 + 2598552576 = 112021^2 + 50976^2 .

It is a cyclic number.

It is not a de Polignac number, because 15147257017 - 2⁷ = 15147256889 is a prime.

It is not a weakly prime, because it can be changed into another prime (15147257077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7573628508 + 7573628509.

It is an arithmetic number, because the mean of its divisors is an integer number (7573628509).

Almost surely, 2^15147257017 is an apocalyptic number.

It is an amenable number.

15147257017 is a deficient number, since it is larger than the sum of its proper divisors (1).

15147257017 is an equidigital number, since it uses as much as digits as its factorization.

15147257017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68600, while the sum is 40.

The spelling of 15147257017 in words is "fifteen billion, one hundred forty-seven million, two hundred fifty-seven thousand, seventeen".