118212997 has 16 divisors (see below), whose sum is σ = 137592832. Its totient is φ = 99474480.

The previous prime is 118212989. The next prime is 118213021. The reversal of 118212997 is 799212811.

It is not a de Polignac number, because 118212997 - 2³ = 118212989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118212907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90922 + ... + 92212.

It is an arithmetic number, because the mean of its divisors is an integer number (8599552).

Almost surely, 2^118212997 is an apocalyptic number.

It is an amenable number.

118212997 is a deficient number, since it is larger than the sum of its proper divisors (19379835).

118212997 is a wasteful number, since it uses less digits than its factorization.

118212997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528.

The product of its digits is 18144, while the sum is 40.

The square root of 118212997 is about 10872.5800525910. The cubic root of 118212997 is about 490.7817550258.

The spelling of 118212997 in words is "one hundred eighteen million, two hundred twelve thousand, nine hundred ninety-seven".