15131160817 has 2 divisors, whose sum is σ = 15131160818. Its totient is φ = 15131160816.

The previous prime is 15131160809. The next prime is 15131160851. The reversal of 15131160817 is 71806113151.

It is a happy number.

15131160817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (15131160851) can be obtained adding 15131160817 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14495919201 + 635241616 = 120399^2 + 25204^2 .

It is a cyclic number.

It is not a de Polignac number, because 15131160817 - 2³ = 15131160809 is a prime.

It is a super-2 number, since 2×15131160817² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15131161817) 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, 7565580408 + 7565580409.

It is an arithmetic number, because the mean of its divisors is an integer number (7565580409).

Almost surely, 2^15131160817 is an apocalyptic number.

It is an amenable number.

15131160817 is a deficient number, since it is larger than the sum of its proper divisors (1).

15131160817 is an equidigital number, since it uses as much as digits as its factorization.

15131160817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 34.

Adding to 15131160817 its reverse (71806113151), we get a palindrome (86937273968).

The spelling of 15131160817 in words is "fifteen billion, one hundred thirty-one million, one hundred sixty thousand, eight hundred seventeen".