118791493 has 4 divisors (see below), whose sum is σ = 118933920. Its totient is φ = 118649068.

The previous prime is 118791479. The next prime is 118791503. The reversal of 118791493 is 394197811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118791493 is a prime.

It is a super-2 number, since 2×118791493² = 28222837618338098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118791433) 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 3 ways as a sum of consecutive naturals, for example, 69955 + ... + 71632.

It is an arithmetic number, because the mean of its divisors is an integer number (29733480).

Almost surely, 2^118791493 is an apocalyptic number.

It is an amenable number.

118791493 is a deficient number, since it is larger than the sum of its proper divisors (142427).

118791493 is an equidigital number, since it uses as much as digits as its factorization.

118791493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142426.

The product of its digits is 54432, while the sum is 43.

The square root of 118791493 is about 10899.1510219833. The cubic root of 118791493 is about 491.5810281307.

The spelling of 118791493 in words is "one hundred eighteen million, seven hundred ninety-one thousand, four hundred ninety-three".