118436917 has 2 divisors, whose sum is σ = 118436918. Its totient is φ = 118436916.

The previous prime is 118436863. The next prime is 118436947. The reversal of 118436917 is 719634811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83283876 + 35153041 = 9126^2 + 5929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118436917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118436917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118436947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59218458 + 59218459.

It is an arithmetic number, because the mean of its divisors is an integer number (59218459).

Almost surely, 2^118436917 is an apocalyptic number.

It is an amenable number.

118436917 is a deficient number, since it is larger than the sum of its proper divisors (1).

118436917 is an equidigital number, since it uses as much as digits as its factorization.

118436917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 118436917 is about 10882.8726446651. The cubic root of 118436917 is about 491.0914404743.

The spelling of 118436917 in words is "one hundred eighteen million, four hundred thirty-six thousand, nine hundred seventeen".