118643992 has 8 divisors (see below), whose sum is σ = 222457500. Its totient is φ = 59321992.

The previous prime is 118643983. The next prime is 118644007. The reversal of 118643992 is 299346811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7415242 + ... + 7415257.

Almost surely, 2^118643992 is an apocalyptic number.

It is an amenable number.

118643992 is a deficient number, since it is larger than the sum of its proper divisors (103813508).

118643992 is a wasteful number, since it uses less digits than its factorization.

118643992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14830505 (or 14830501 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 118643992 is about 10892.3822922261. The cubic root of 118643992 is about 491.3774817797.

The spelling of 118643992 in words is "one hundred eighteen million, six hundred forty-three thousand, nine hundred ninety-two".