115618669 has 2 divisors, whose sum is σ = 115618670. Its totient is φ = 115618668.

The previous prime is 115618663. The next prime is 115618687. The reversal of 115618669 is 966816511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115562500 + 56169 = 10750^2 + 237^2 .

It is a cyclic number.

It is not a de Polignac number, because 115618669 - 2⁷ = 115618541 is a prime.

It is a super-2 number, since 2×115618669² = 26735353242663122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115618663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57809334 + 57809335.

It is an arithmetic number, because the mean of its divisors is an integer number (57809335).

Almost surely, 2^115618669 is an apocalyptic number.

It is an amenable number.

115618669 is a deficient number, since it is larger than the sum of its proper divisors (1).

115618669 is an equidigital number, since it uses as much as digits as its factorization.

115618669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 43.

The square root of 115618669 is about 10752.6121942531. The cubic root of 115618669 is about 487.1648982636.

The spelling of 115618669 in words is "one hundred fifteen million, six hundred eighteen thousand, six hundred sixty-nine".