118121530 has 16 divisors (see below), whose sum is σ = 212743584. Its totient is φ = 47220880.

The previous prime is 118121503. The next prime is 118121543. The reversal of 118121530 is 35121811.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28149 + ... + 32071.

It is an arithmetic number, because the mean of its divisors is an integer number (13296474).

Almost surely, 2^118121530 is an apocalyptic number.

118121530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118121530 is a deficient number, since it is larger than the sum of its proper divisors (94622054).

118121530 is a wasteful number, since it uses less digits than its factorization.

118121530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6941.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 118121530 is about 10868.3729233037. The cubic root of 118121530 is about 490.6551419944.

The spelling of 118121530 in words is "one hundred eighteen million, one hundred twenty-one thousand, five hundred thirty".