118885961 has 4 divisors (see below), whose sum is σ = 122721024. Its totient is φ = 115050900.

The previous prime is 118885957. The next prime is 118886041. The reversal of 118885961 is 169588811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 169588811 = 7 ⋅24226973.

It is a cyclic number.

It is not a de Polignac number, because 118885961 - 2² = 118885957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (118885951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1917485 + ... + 1917546.

It is an arithmetic number, because the mean of its divisors is an integer number (30680256).

Almost surely, 2^118885961 is an apocalyptic number.

It is an amenable number.

118885961 is a deficient number, since it is larger than the sum of its proper divisors (3835063).

118885961 is an equidigital number, since it uses as much as digits as its factorization.

118885961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835062.

The product of its digits is 138240, while the sum is 47.

The square root of 118885961 is about 10903.4838927748. The cubic root of 118885961 is about 491.7113022517.

The spelling of 118885961 in words is "one hundred eighteen million, eight hundred eighty-five thousand, nine hundred sixty-one".