118838081 has 2 divisors, whose sum is σ = 118838082. Its totient is φ = 118838080.

The previous prime is 118838059. The next prime is 118838089. The reversal of 118838081 is 180838811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62663056 + 56175025 = 7916^2 + 7495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118838081 is a prime.

It is a super-2 number, since 2×118838081² = 28244978991525122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118838089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59419040 + 59419041.

It is an arithmetic number, because the mean of its divisors is an integer number (59419041).

Almost surely, 2^118838081 is an apocalyptic number.

It is an amenable number.

118838081 is a deficient number, since it is larger than the sum of its proper divisors (1).

118838081 is an equidigital number, since it uses as much as digits as its factorization.

118838081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 38.

The square root of 118838081 is about 10901.2880431626. The cubic root of 118838081 is about 491.6452829667.

The spelling of 118838081 in words is "one hundred eighteen million, eight hundred thirty-eight thousand, eighty-one".