15117061 has 2 divisors, whose sum is σ = 15117062. Its totient is φ = 15117060.

The previous prime is 15117043. The next prime is 15117071. The reversal of 15117061 is 16071151.

15117061 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., 14861025 + 256036 = 3855^2 + 506^2 .

It is an emirp because it is prime and its reverse (16071151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15117061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15117041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7558530 + 7558531.

It is an arithmetic number, because the mean of its divisors is an integer number (7558531).

Almost surely, 2^15117061 is an apocalyptic number.

It is an amenable number.

15117061 is a deficient number, since it is larger than the sum of its proper divisors (1).

15117061 is an equidigital number, since it uses as much as digits as its factorization.

15117061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 15117061 is about 3888.0664860570. The cubic root of 15117061 is about 247.2610951811.

The spelling of 15117061 in words is "fifteen million, one hundred seventeen thousand, sixty-one".