118426291 has 4 divisors (see below), whose sum is σ = 118724992. Its totient is φ = 118127592.

The previous prime is 118426283. The next prime is 118426331. The reversal of 118426291 is 192624811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192624811 = 151 ⋅1275661.

It is a cyclic number.

It is not a de Polignac number, because 118426291 - 2³ = 118426283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118426201) 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, 148755 + ... + 149548.

It is an arithmetic number, because the mean of its divisors is an integer number (29681248).

Almost surely, 2^118426291 is an apocalyptic number.

118426291 is a deficient number, since it is larger than the sum of its proper divisors (298701).

118426291 is an equidigital number, since it uses as much as digits as its factorization.

118426291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298700.

The product of its digits is 6912, while the sum is 34.

The square root of 118426291 is about 10882.3844354075. The cubic root of 118426291 is about 491.0767533484.

It can be divided in two parts, 118 and 426291, that added together give a square (426409 = 653²).

The spelling of 118426291 in words is "one hundred eighteen million, four hundred twenty-six thousand, two hundred ninety-one".