118194972 has 96 divisors (see below), whose sum is σ = 335462400. Its totient is φ = 31637952.

The previous prime is 118194961. The next prime is 118194977. The reversal of 118194972 is 279491811.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118194977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164029 + ... + 164747.

It is an arithmetic number, because the mean of its divisors is an integer number (3494400).

Almost surely, 2^118194972 is an apocalyptic number.

118194972 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 118194972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167731200).

118194972 is an abundant number, since it is smaller than the sum of its proper divisors (217267428).

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

118194972 is a wasteful number, since it uses less digits than its factorization.

118194972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 853 counting only the distinct ones).

The product of its digits is 36288, while the sum is 42.

The square root of 118194972 is about 10871.7511009037. The cubic root of 118194972 is about 490.7568091202.

The spelling of 118194972 in words is "one hundred eighteen million, one hundred ninety-four thousand, nine hundred seventy-two".