231399853 has 8 divisors (see below), whose sum is σ = 236020928. Its totient is φ = 226818144.

The previous prime is 231399851. The next prime is 231399877. The reversal of 231399853 is 358993132.

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

It is a cyclic number.

It is not a de Polignac number, because 231399853 - 2¹ = 231399851 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 (231399851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2176 + ... + 21622.

It is an arithmetic number, because the mean of its divisors is an integer number (29502616).

Almost surely, 2^231399853 is an apocalyptic number.

It is an amenable number.

231399853 is a deficient number, since it is larger than the sum of its proper divisors (4621075).

231399853 is a wasteful number, since it uses less digits than its factorization.

231399853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19683.

The product of its digits is 174960, while the sum is 43.

The square root of 231399853 is about 15211.8326640809. The cubic root of 231399853 is about 613.9330680329.

The spelling of 231399853 in words is "two hundred thirty-one million, three hundred ninety-nine thousand, eight hundred fifty-three".