118609313 has 2 divisors, whose sum is σ = 118609314. Its totient is φ = 118609312.

The previous prime is 118609303. The next prime is 118609327. The reversal of 118609313 is 313906811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74943649 + 43665664 = 8657^2 + 6608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118609313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118609313.

It is not a weakly prime, because it can be changed into another prime (118609303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59304656 + 59304657.

It is an arithmetic number, because the mean of its divisors is an integer number (59304657).

Almost surely, 2^118609313 is an apocalyptic number.

It is an amenable number.

118609313 is a deficient number, since it is larger than the sum of its proper divisors (1).

118609313 is an equidigital number, since it uses as much as digits as its factorization.

118609313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 118609313 is about 10890.7902835377. The cubic root of 118609313 is about 491.3296014503.

The spelling of 118609313 in words is "one hundred eighteen million, six hundred nine thousand, three hundred thirteen".