231580000 has 60 divisors (see below), whose sum is σ = 569770740. Its totient is φ = 92624000.

The previous prime is 231579937. The next prime is 231580057. The reversal of 231580000 is 85132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231580000.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 14211 + ... + 25789.

It is an arithmetic number, because the mean of its divisors is an integer number (9496179).

Almost surely, 2^231580000 is an apocalyptic number.

231580000 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 231580000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284885370).

231580000 is an abundant number, since it is smaller than the sum of its proper divisors (338190740).

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

231580000 is an equidigital number, since it uses as much as digits as its factorization.

231580000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11609 (or 11586 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 231580000 is about 15217.7527907375. The cubic root of 231580000 is about 614.0923442969.

The spelling of 231580000 in words is "two hundred thirty-one million, five hundred eighty thousand".