118905900 has 36 divisors (see below), whose sum is σ = 344035272. Its totient is φ = 31708160.

The previous prime is 118905893. The next prime is 118905907. The reversal of 118905900 is 9509811.

It is an interprime number because it is at equal distance from previous prime (118905893) and next prime (118905907).

It is a super-2 number, since 2×118905900² = 28277226109620000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118905907) 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 11 ways as a sum of consecutive naturals, for example, 197877 + ... + 198476.

Almost surely, 2^118905900 is an apocalyptic number.

118905900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118905900 is an abundant number, since it is smaller than the sum of its proper divisors (225129372).

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

118905900 is a wasteful number, since it uses less digits than its factorization.

118905900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396370 (or 396363 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 118905900 is about 10904.3981952238. The cubic root of 118905900 is about 491.7387898920.

It can be divided in two parts, 118905 and 900, that added together give a triangular number (119805 = T₄₈₉).

The spelling of 118905900 in words is "one hundred eighteen million, nine hundred five thousand, nine hundred".