230831881 has 8 divisors (see below), whose sum is σ = 266986944. Its totient is φ = 195471600.

The previous prime is 230831833. The next prime is 230831897. The reversal of 230831881 is 188138032.

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 230831881 - 2⁹ = 230831369 is a prime.

It is a super-2 number, since 2×230831881² = 106566714571996322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230831581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198070 + ... + 199231.

It is an arithmetic number, because the mean of its divisors is an integer number (33373368).

Almost surely, 2^230831881 is an apocalyptic number.

It is an amenable number.

230831881 is a deficient number, since it is larger than the sum of its proper divisors (36155063).

230831881 is an equidigital number, since it uses as much as digits as its factorization.

230831881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397391.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 230831881 is about 15193.1524378583. The cubic root of 230831881 is about 613.4303559953.

It can be divided in two parts, 23083 and 1881, that added together give a square (24964 = 158²).

The spelling of 230831881 in words is "two hundred thirty million, eight hundred thirty-one thousand, eight hundred eighty-one".