118312669 has 2 divisors, whose sum is σ = 118312670. Its totient is φ = 118312668.

The previous prime is 118312661. The next prime is 118312699. The reversal of 118312669 is 966213811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89529444 + 28783225 = 9462^2 + 5365^2 .

It is an emirp because it is prime and its reverse (966213811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118312669 - 2³ = 118312661 is a prime.

It is a super-2 number, since 2×118312669² = 27995775291807122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118312661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59156334 + 59156335.

It is an arithmetic number, because the mean of its divisors is an integer number (59156335).

Almost surely, 2^118312669 is an apocalyptic number.

It is an amenable number.

118312669 is a deficient number, since it is larger than the sum of its proper divisors (1).

118312669 is an equidigital number, since it uses as much as digits as its factorization.

118312669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 118312669 is about 10877.1627274763. The cubic root of 118312669 is about 490.9196514740.

The spelling of 118312669 in words is "one hundred eighteen million, three hundred twelve thousand, six hundred sixty-nine".