113866517 has 2 divisors, whose sum is σ = 113866518. Its totient is φ = 113866516.

The previous prime is 113866513. The next prime is 113866541. The reversal of 113866517 is 715668311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113507716 + 358801 = 10654^2 + 599^2 .

It is an emirp because it is prime and its reverse (715668311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113866517 - 2² = 113866513 is a prime.

It is a super-2 number, since 2×113866517² = 25931167387422578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113866513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56933258 + 56933259.

It is an arithmetic number, because the mean of its divisors is an integer number (56933259).

Almost surely, 2^113866517 is an apocalyptic number.

It is an amenable number.

113866517 is a deficient number, since it is larger than the sum of its proper divisors (1).

113866517 is an equidigital number, since it uses as much as digits as its factorization.

113866517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 113866517 is about 10670.8255069606. The cubic root of 113866517 is about 484.6914351444.

The spelling of 113866517 in words is "one hundred thirteen million, eight hundred sixty-six thousand, five hundred seventeen".