118691271 has 16 divisors (see below), whose sum is σ = 185094400. Its totient is φ = 74962584.

The previous prime is 118691249. The next prime is 118691273. The reversal of 118691271 is 172196811.

It is not a de Polignac number, because 118691271 - 2⁶ = 118691207 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 (118691273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115171 + ... + 116196.

It is an arithmetic number, because the mean of its divisors is an integer number (11568400).

Almost surely, 2^118691271 is an apocalyptic number.

118691271 is a deficient number, since it is larger than the sum of its proper divisors (66403129).

118691271 is a wasteful number, since it uses less digits than its factorization.

118691271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231395 (or 231389 counting only the distinct ones).

The product of its digits is 6048, while the sum is 36.

The square root of 118691271 is about 10894.5523542732. The cubic root of 118691271 is about 491.4427435496.

The spelling of 118691271 in words is "one hundred eighteen million, six hundred ninety-one thousand, two hundred seventy-one".