118471812 has 24 divisors (see below), whose sum is σ = 280562016. Its totient is φ = 38900928.

The previous prime is 118471811. The next prime is 118471813. The reversal of 118471812 is 218174811.

It is an interprime number because it is at equal distance from previous prime (118471811) and next prime (118471813).

It is not an unprimeable number, because it can be changed into a prime (118471811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72873 + ... + 74480.

It is an arithmetic number, because the mean of its divisors is an integer number (11690084).

Almost surely, 2^118471812 is an apocalyptic number.

118471812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

118471812 is an abundant number, since it is smaller than the sum of its proper divisors (162090204).

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

118471812 is a wasteful number, since it uses less digits than its factorization.

118471812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147427 (or 147425 counting only the distinct ones).

The product of its digits is 3584, while the sum is 33.

The square root of 118471812 is about 10884.4757338147. The cubic root of 118471812 is about 491.1396657336.

The spelling of 118471812 in words is "one hundred eighteen million, four hundred seventy-one thousand, eight hundred twelve".