118391072 has 12 divisors (see below), whose sum is σ = 233082486. Its totient is φ = 59195520.

The previous prime is 118391027. The next prime is 118391081. The reversal of 118391072 is 270193811.

It can be written as a sum of positive squares in only one way, i.e., 106584976 + 11806096 = 10324^2 + 3436^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 3699721 = 118391072 / (1 + 1 + 8 + 3 + 9 + 1 + 0 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1849829 + ... + 1849892.

Almost surely, 2^118391072 is an apocalyptic number.

It is an amenable number.

118391072 is a deficient number, since it is larger than the sum of its proper divisors (114691414).

118391072 is an equidigital number, since it uses as much as digits as its factorization.

118391072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699731 (or 3699723 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 118391072 is about 10880.7661494952. The cubic root of 118391072 is about 491.0280677995.

The spelling of 118391072 in words is "one hundred eighteen million, three hundred ninety-one thousand, seventy-two".