231478118 has 8 divisors (see below), whose sum is σ = 362313648. Its totient is φ = 110706904.

The previous prime is 231478111. The next prime is 231478123. The reversal of 231478118 is 811874132.

231478118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×231478118² = 107164238225643848, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231478111) 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, 2516021 + ... + 2516112.

It is an arithmetic number, because the mean of its divisors is an integer number (45289206).

Almost surely, 2^231478118 is an apocalyptic number.

231478118 is a deficient number, since it is larger than the sum of its proper divisors (130835530).

231478118 is a wasteful number, since it uses less digits than its factorization.

231478118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032158.

The product of its digits is 10752, while the sum is 35.

The square root of 231478118 is about 15214.4049505723. The cubic root of 231478118 is about 614.0022758778.

The spelling of 231478118 in words is "two hundred thirty-one million, four hundred seventy-eight thousand, one hundred eighteen".