231881250 has 96 divisors (see below), whose sum is σ = 590587200. Its totient is φ = 60680000.

The previous prime is 231881249. The next prime is 231881261. The reversal of 231881250 is 52188132.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 47 ways as a sum of consecutive naturals, for example, 1556176 + ... + 1556324.

It is an arithmetic number, because the mean of its divisors is an integer number (6151950).

Almost surely, 2^231881250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231881250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295293600).

231881250 is an abundant number, since it is smaller than the sum of its proper divisors (358705950).

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

231881250 is an equidigital number, since it uses as much as digits as its factorization.

231881250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 231881250 is about 15227.6475530530. The cubic root of 231881250 is about 614.3585088474.

The spelling of 231881250 in words is "two hundred thirty-one million, eight hundred eighty-one thousand, two hundred fifty".