118988961 has 16 divisors (see below), whose sum is σ = 195264384. Its totient is φ = 62763264.

The previous prime is 118988957. The next prime is 118988981. The reversal of 118988961 is 169889811.

It is not a de Polignac number, because 118988961 - 2² = 118988957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118988921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217656 + ... + 218201.

It is an arithmetic number, because the mean of its divisors is an integer number (12204024).

Almost surely, 2^118988961 is an apocalyptic number.

It is an amenable number.

118988961 is a deficient number, since it is larger than the sum of its proper divisors (76275423).

118988961 is a wasteful number, since it uses less digits than its factorization.

118988961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435880.

The product of its digits is 248832, while the sum is 51.

The square root of 118988961 is about 10908.2061311657. The cubic root of 118988961 is about 491.8532636308.

The spelling of 118988961 in words is "one hundred eighteen million, nine hundred eighty-eight thousand, nine hundred sixty-one".