118409923 has 8 divisors (see below), whose sum is σ = 119257920. Its totient is φ = 117565440.

The previous prime is 118409903. The next prime is 118409959. The reversal of 118409923 is 329904811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118409923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118409903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110233 + ... + 111301.

It is an arithmetic number, because the mean of its divisors is an integer number (14907240).

Almost surely, 2^118409923 is an apocalyptic number.

118409923 is a deficient number, since it is larger than the sum of its proper divisors (847997).

118409923 is a wasteful number, since it uses less digits than its factorization.

118409923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 118409923 is about 10881.6323683536. The cubic root of 118409923 is about 491.0541279821.

The spelling of 118409923 in words is "one hundred eighteen million, four hundred nine thousand, nine hundred twenty-three".