118943939 has 4 divisors (see below), whose sum is σ = 119852040. Its totient is φ = 118035840.

The previous prime is 118943927. The next prime is 118943953. The reversal of 118943939 is 939349811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118943939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118943893 and 118943902.

It is not an unprimeable number, because it can be changed into a prime (118943989) 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, 453854 + ... + 454115.

It is an arithmetic number, because the mean of its divisors is an integer number (29963010).

Almost surely, 2^118943939 is an apocalyptic number.

118943939 is a deficient number, since it is larger than the sum of its proper divisors (908101).

118943939 is an equidigital number, since it uses as much as digits as its factorization.

118943939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908100.

The product of its digits is 209952, while the sum is 47.

The square root of 118943939 is about 10906.1422602128. The cubic root of 118943939 is about 491.7912214297.

The spelling of 118943939 in words is "one hundred eighteen million, nine hundred forty-three thousand, nine hundred thirty-nine".