118711992 has 64 divisors (see below), whose sum is σ = 347086080. Its totient is φ = 33126912.

The previous prime is 118711987. The next prime is 118712023. The reversal of 118711992 is 299117811.

It is a self number, because there is not a number n which added to its sum of digits gives 118711992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 993 + ... + 15440.

It is an arithmetic number, because the mean of its divisors is an integer number (5423220).

Almost surely, 2^118711992 is an apocalyptic number.

118711992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118711992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173543040).

118711992 is an abundant number, since it is smaller than the sum of its proper divisors (228374088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118711992 is a wasteful number, since it uses less digits than its factorization.

118711992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16492 (or 16488 counting only the distinct ones).

The product of its digits is 9072, while the sum is 39.

The square root of 118711992 is about 10895.5032926433. The cubic root of 118711992 is about 491.4713404084.

The spelling of 118711992 in words is "one hundred eighteen million, seven hundred eleven thousand, nine hundred ninety-two".