118280871 has 16 divisors (see below), whose sum is σ = 184454400. Its totient is φ = 74703384.

The previous prime is 118280863. The next prime is 118280887. The reversal of 118280871 is 178082811.

It is not a de Polignac number, because 118280871 - 2³ = 118280863 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118280801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114771 + ... + 115796.

It is an arithmetic number, because the mean of its divisors is an integer number (11528400).

Almost surely, 2^118280871 is an apocalyptic number.

118280871 is a deficient number, since it is larger than the sum of its proper divisors (66173529).

118280871 is a wasteful number, since it uses less digits than its factorization.

118280871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230595 (or 230589 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 36.

The square root of 118280871 is about 10875.7009429278. The cubic root of 118280871 is about 490.8756672811.

The spelling of 118280871 in words is "one hundred eighteen million, two hundred eighty thousand, eight hundred seventy-one".