15117013 has 2 divisors, whose sum is σ = 15117014. Its totient is φ = 15117012.

The previous prime is 15116897. The next prime is 15117041. The reversal of 15117013 is 31071151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15069924 + 47089 = 3882^2 + 217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15117013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15117043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7558506 + 7558507.

It is an arithmetic number, because the mean of its divisors is an integer number (7558507).

Almost surely, 2^15117013 is an apocalyptic number.

It is an amenable number.

15117013 is a deficient number, since it is larger than the sum of its proper divisors (1).

15117013 is an equidigital number, since it uses as much as digits as its factorization.

15117013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105, while the sum is 19.

The square root of 15117013 is about 3888.0603133182. The cubic root of 15117013 is about 247.2608334780.

Adding to 15117013 its reverse (31071151), we get a palindrome (46188164).

The spelling of 15117013 in words is "fifteen million, one hundred seventeen thousand, thirteen".