118457911 has 12 divisors (see below), whose sum is σ = 140223496. Its totient is φ = 99403920.

The previous prime is 118457909. The next prime is 118457917. The reversal of 118457911 is 119754811.

It is a happy number.

It is not a de Polignac number, because 118457911 - 2¹ = 118457909 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 (118457917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36081 + ... + 39226.

Almost surely, 2^118457911 is an apocalyptic number.

118457911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

118457911 is a deficient number, since it is larger than the sum of its proper divisors (21765585).

118457911 is a wasteful number, since it uses less digits than its factorization.

118457911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75342 (or 75331 counting only the distinct ones).

The product of its digits is 10080, while the sum is 37.

The square root of 118457911 is about 10883.8371450514. The cubic root of 118457911 is about 491.1204555394.

It can be divided in two parts, 1184 and 57911, that added together give a palindrome (59095).

The spelling of 118457911 in words is "one hundred eighteen million, four hundred fifty-seven thousand, nine hundred eleven".