118218925 has 12 divisors (see below), whose sum is σ = 159918336. Its totient is φ = 85977200.

The previous prime is 118218923. The next prime is 118218929. The reversal of 118218925 is 529812811.

It is not a de Polignac number, because 118218925 - 2¹ = 118218923 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 (118218923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214669 + ... + 215218.

It is an arithmetic number, because the mean of its divisors is an integer number (13326528).

Almost surely, 2^118218925 is an apocalyptic number.

It is an amenable number.

118218925 is a deficient number, since it is larger than the sum of its proper divisors (41699411).

118218925 is a wasteful number, since it uses less digits than its factorization.

118218925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429908 (or 429903 counting only the distinct ones).

The product of its digits is 11520, while the sum is 37.

The square root of 118218925 is about 10872.8526615604. The cubic root of 118218925 is about 490.7899585953.

The spelling of 118218925 in words is "one hundred eighteen million, two hundred eighteen thousand, nine hundred twenty-five".