118308073 has 4 divisors (see below), whose sum is σ = 127408708. Its totient is φ = 109207440.

The previous prime is 118308061. The next prime is 118308101. The reversal of 118308073 is 370803811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43191184 + 75116889 = 6572^2 + 8667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118308073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118308013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550298 + ... + 4550323.

It is an arithmetic number, because the mean of its divisors is an integer number (31852177).

Almost surely, 2^118308073 is an apocalyptic number.

118308073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

118308073 is a deficient number, since it is larger than the sum of its proper divisors (9100635).

118308073 is an equidigital number, since it uses as much as digits as its factorization.

118308073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100634.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 118308073 is about 10876.9514570950. The cubic root of 118308073 is about 490.9132946007.

The spelling of 118308073 in words is "one hundred eighteen million, three hundred eight thousand, seventy-three".