231250500 has 288 divisors, whose sum is σ = 810875520. Its totient is φ = 55123200.

The previous prime is 231250499. The next prime is 231250511. The reversal of 231250500 is 5052132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3451467 + ... + 3451533.

It is an arithmetic number, because the mean of its divisors is an integer number (2815540).

Almost surely, 2^231250500 is an apocalyptic number.

231250500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231250500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405437760).

231250500 is an abundant number, since it is smaller than the sum of its proper divisors (579625020).

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

231250500 is a wasteful number, since it uses less digits than its factorization.

231250500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 231250500 is about 15206.9227656354. The cubic root of 231250500 is about 613.8009554745.

The spelling of 231250500 in words is "two hundred thirty-one million, two hundred fifty thousand, five hundred".