118775961 has 12 divisors (see below), whose sum is σ = 172252080. Its totient is φ = 78867000.

The previous prime is 118775959. The next prime is 118775963. The reversal of 118775961 is 169577811.

It is an interprime number because it is at equal distance from previous prime (118775959) and next prime (118775963).

It is not a de Polignac number, because 118775961 - 2¹ = 118775959 is a prime.

It is a super-2 number, since 2×118775961² = 28215457822947042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118775963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24031 + ... + 28548.

It is an arithmetic number, because the mean of its divisors is an integer number (14354340).

Almost surely, 2^118775961 is an apocalyptic number.

It is an amenable number.

118775961 is a deficient number, since it is larger than the sum of its proper divisors (53476119).

118775961 is a wasteful number, since it uses less digits than its factorization.

118775961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52836 (or 52833 counting only the distinct ones).

The product of its digits is 105840, while the sum is 45.

The square root of 118775961 is about 10898.4384661290. The cubic root of 118775961 is about 491.5596024401.

The spelling of 118775961 in words is "one hundred eighteen million, seven hundred seventy-five thousand, nine hundred sixty-one".