118959881 has 2 divisors, whose sum is σ = 118959882. Its totient is φ = 118959880.

The previous prime is 118959853. The next prime is 118959889. The reversal of 118959881 is 188959811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116985856 + 1974025 = 10816^2 + 1405^2 .

It is a cyclic number.

It is not a de Polignac number, because 118959881 - 2²⁶ = 51851017 is a prime.

It is a super-2 number, since 2×118959881² = 28302906575068322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (118959889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59479940 + 59479941.

It is an arithmetic number, because the mean of its divisors is an integer number (59479941).

Almost surely, 2^118959881 is an apocalyptic number.

It is an amenable number.

118959881 is a deficient number, since it is larger than the sum of its proper divisors (1).

118959881 is an equidigital number, since it uses as much as digits as its factorization.

118959881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 50.

The square root of 118959881 is about 10906.8731082744. The cubic root of 118959881 is about 491.8131919633.

The spelling of 118959881 in words is "one hundred eighteen million, nine hundred fifty-nine thousand, eight hundred eighty-one".