231257248 has 24 divisors (see below), whose sum is σ = 459714528. Its totient is φ = 114504384.

The previous prime is 231257209. The next prime is 231257297. The reversal of 231257248 is 842752132.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31786 + ... + 38377.

It is an arithmetic number, because the mean of its divisors is an integer number (19154772).

Almost surely, 2^231257248 is an apocalyptic number.

It is an amenable number.

231257248 is a deficient number, since it is larger than the sum of its proper divisors (228457280).

231257248 is a wasteful number, since it uses less digits than its factorization.

231257248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70276 (or 70268 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 231257248 is about 15207.1446366502. The cubic root of 231257248 is about 613.8069257514.

The spelling of 231257248 in words is "two hundred thirty-one million, two hundred fifty-seven thousand, two hundred forty-eight".