118730839 has 4 divisors (see below), whose sum is σ = 125715024. Its totient is φ = 111746656.

The previous prime is 118730809. The next prime is 118730861. The reversal of 118730839 is 938037811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938037811 = 41 ⋅22878971.

It is a cyclic number.

It is not a de Polignac number, because 118730839 - 2⁹ = 118730327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118730809) 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, 3492067 + ... + 3492100.

It is an arithmetic number, because the mean of its divisors is an integer number (31428756).

Almost surely, 2^118730839 is an apocalyptic number.

118730839 is a deficient number, since it is larger than the sum of its proper divisors (6984185).

118730839 is an equidigital number, since it uses as much as digits as its factorization.

118730839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6984184.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 118730839 is about 10896.3681564088. The cubic root of 118730839 is about 491.4973480876.

The spelling of 118730839 in words is "one hundred eighteen million, seven hundred thirty thousand, eight hundred thirty-nine".