118113151 has 4 divisors (see below), whose sum is σ = 127198792. Its totient is φ = 109027512.

The previous prime is 118113133. The next prime is 118113157. The reversal of 118113151 is 151311811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151311811 = 7 ⋅21615973.

It is a cyclic number.

It is not a de Polignac number, because 118113151 - 2⁹ = 118112639 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 (118113157) 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, 4542801 + ... + 4542826.

It is an arithmetic number, because the mean of its divisors is an integer number (31799698).

Almost surely, 2^118113151 is an apocalyptic number.

118113151 is a deficient number, since it is larger than the sum of its proper divisors (9085641).

118113151 is an equidigital number, since it uses as much as digits as its factorization.

118113151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9085640.

The product of its digits is 120, while the sum is 22.

The square root of 118113151 is about 10867.9874401841. The cubic root of 118113151 is about 490.6435401110.

Adding to 118113151 its reverse (151311811), we get a palindrome (269424962).

The spelling of 118113151 in words is "one hundred eighteen million, one hundred thirteen thousand, one hundred fifty-one".