115147517 has 2 divisors, whose sum is σ = 115147518. Its totient is φ = 115147516.

The previous prime is 115147489. The next prime is 115147519. The reversal of 115147517 is 715741511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102799321 + 12348196 = 10139^2 + 3514^2 .

It is a cyclic number.

It is not a de Polignac number, because 115147517 - 2⁸ = 115147261 is a prime.

Together with 115147519, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_6580625 and since 115147517 and 6580625 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115147519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57573758 + 57573759.

It is an arithmetic number, because the mean of its divisors is an integer number (57573759).

Almost surely, 2^115147517 is an apocalyptic number.

It is an amenable number.

115147517 is a deficient number, since it is larger than the sum of its proper divisors (1).

115147517 is an equidigital number, since it uses as much as digits as its factorization.

115147517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4900, while the sum is 32.

The square root of 115147517 is about 10730.6811060622. The cubic root of 115147517 is about 486.5022567071.

The spelling of 115147517 in words is "one hundred fifteen million, one hundred forty-seven thousand, five hundred seventeen".