118191479 has 12 divisors (see below), whose sum is σ = 140843808. Its totient is φ = 98834400.

The previous prime is 118191433. The next prime is 118191481. The reversal of 118191479 is 974191811.

It is not a de Polignac number, because 118191479 - 2⁸ = 118191223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118191179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27407 + ... + 31424.

It is an arithmetic number, because the mean of its divisors is an integer number (11736984).

Almost surely, 2^118191479 is an apocalyptic number.

118191479 is a deficient number, since it is larger than the sum of its proper divisors (22652329).

118191479 is an equidigital number, since it uses as much as digits as its factorization.

118191479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58886 (or 58879 counting only the distinct ones).

The product of its digits is 18144, while the sum is 41.

The square root of 118191479 is about 10871.5904540228. The cubic root of 118191479 is about 490.7519746494.

The spelling of 118191479 in words is "one hundred eighteen million, one hundred ninety-one thousand, four hundred seventy-nine".