118711993 has 8 divisors (see below), whose sum is σ = 128145600. Its totient is φ = 109634448.

The previous prime is 118711987. The next prime is 118712023. The reversal of 118711993 is 399117811.

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-118711993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118711903) 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, 88323 + ... + 89656.

It is an arithmetic number, because the mean of its divisors is an integer number (16018200).

Almost surely, 2^118711993 is an apocalyptic number.

It is an amenable number.

118711993 is a deficient number, since it is larger than the sum of its proper divisors (9433607).

118711993 is a wasteful number, since it uses less digits than its factorization.

118711993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178031.

The product of its digits is 13608, while the sum is 40.

The square root of 118711993 is about 10895.5033385337. The cubic root of 118711993 is about 491.4713417884.

The spelling of 118711993 in words is "one hundred eighteen million, seven hundred eleven thousand, nine hundred ninety-three".