230331144 has 16 divisors (see below), whose sum is σ = 575827920. Its totient is φ = 76777040.

The previous prime is 230331139. The next prime is 230331173. The reversal of 230331144 is 441133032.

It is a self number, because there is not a number n which added to its sum of digits gives 230331144.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4798542 + ... + 4798589.

It is an arithmetic number, because the mean of its divisors is an integer number (35989245).

Almost surely, 2^230331144 is an apocalyptic number.

230331144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

230331144 is an abundant number, since it is smaller than the sum of its proper divisors (345496776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230331144 is a wasteful number, since it uses less digits than its factorization.

230331144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9597140 (or 9597136 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 230331144 is about 15176.6644556701. The cubic root of 230331144 is about 612.9864692256.

Adding to 230331144 its reverse (441133032), we get a palindrome (671464176).

The spelling of 230331144 in words is "two hundred thirty million, three hundred thirty-one thousand, one hundred forty-four".