118430979 has 8 divisors (see below), whose sum is σ = 164773632. Its totient is φ = 75521160.

The previous prime is 118430947. The next prime is 118430999. The reversal of 118430979 is 979034811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118430979 - 2⁵ = 118430947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118430979.

It is not an unprimeable number, because it can be changed into a prime (118430999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858127 + ... + 858264.

It is an arithmetic number, because the mean of its divisors is an integer number (20596704).

Almost surely, 2^118430979 is an apocalyptic number.

118430979 is a deficient number, since it is larger than the sum of its proper divisors (46342653).

118430979 is a wasteful number, since it uses less digits than its factorization.

118430979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716417.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 118430979 is about 10882.5998272472. The cubic root of 118430979 is about 491.0832331524.

The spelling of 118430979 in words is "one hundred eighteen million, four hundred thirty thousand, nine hundred seventy-nine".