231214018 has 8 divisors (see below), whose sum is σ = 396366912. Its totient is φ = 99091716.

The previous prime is 231214007. The next prime is 231214019. The reversal of 231214018 is 810412132.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 231214018.

It is not an unprimeable number, because it can be changed into a prime (231214019) 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, 8257630 + ... + 8257657.

It is an arithmetic number, because the mean of its divisors is an integer number (49545864).

Almost surely, 2^231214018 is an apocalyptic number.

231214018 is a deficient number, since it is larger than the sum of its proper divisors (165152894).

231214018 is a wasteful number, since it uses less digits than its factorization.

231214018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16515296.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 231214018 is about 15205.7231988485. The cubic root of 231214018 is about 613.7686761005.

The spelling of 231214018 in words is "two hundred thirty-one million, two hundred fourteen thousand, eighteen".