231257250 has 96 divisors (see below), whose sum is σ = 714699648. Its totient is φ = 52855200.

The previous prime is 231257209. The next prime is 231257297. The reversal of 231257250 is 52752132.

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, 8409 + ... + 23091.

It is an arithmetic number, because the mean of its divisors is an integer number (7444788).

Almost surely, 2^231257250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231257250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357349824).

231257250 is an abundant number, since it is smaller than the sum of its proper divisors (483442398).

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

231257250 is a wasteful number, since it uses less digits than its factorization.

231257250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14713 (or 14700 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 231257250 is about 15207.1447024088. The cubic root of 231257250 is about 613.8069275209.

The spelling of 231257250 in words is "two hundred thirty-one million, two hundred fifty-seven thousand, two hundred fifty".