231257948 has 12 divisors (see below), whose sum is σ = 418656840. Its totient is φ = 111641712.

The previous prime is 231257927. The next prime is 231257951. The reversal of 231257948 is 849752132.

It is a congruent 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, 996686 + ... + 996917.

It is an arithmetic number, because the mean of its divisors is an integer number (34888070).

Almost surely, 2^231257948 is an apocalyptic number.

It is an amenable number.

231257948 is a deficient number, since it is larger than the sum of its proper divisors (187398892).

231257948 is a wasteful number, since it uses less digits than its factorization.

231257948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993636 (or 1993634 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 231257948 is about 15207.1676521304. The cubic root of 231257948 is about 613.8075450681.

The spelling of 231257948 in words is "two hundred thirty-one million, two hundred fifty-seven thousand, nine hundred forty-eight".