113636689 has 2 divisors, whose sum is σ = 113636690. Its totient is φ = 113636688.

The previous prime is 113636683. The next prime is 113636729. The reversal of 113636689 is 986636311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113635600 + 1089 = 10660^2 + 33^2 .

It is an emirp because it is prime and its reverse (986636311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113636689 - 2¹³ = 113628497 is a prime.

It is not a weakly prime, because it can be changed into another prime (113636683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56818344 + 56818345.

It is an arithmetic number, because the mean of its divisors is an integer number (56818345).

Almost surely, 2^113636689 is an apocalyptic number.

It is an amenable number.

113636689 is a deficient number, since it is larger than the sum of its proper divisors (1).

113636689 is an equidigital number, since it uses as much as digits as its factorization.

113636689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 113636689 is about 10660.0510786769. The cubic root of 113636689 is about 484.3651153529.

The spelling of 113636689 in words is "one hundred thirteen million, six hundred thirty-six thousand, six hundred eighty-nine".