231258612 has 48 divisors (see below), whose sum is σ = 593494272. Its totient is φ = 69640320.

The previous prime is 231258611. The next prime is 231258613. The reversal of 231258612 is 216852132.

It is an interprime number because it is at equal distance from previous prime (231258611) and next prime (231258613).

It is a self number, because there is not a number n which added to its sum of digits gives 231258612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231258611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8439 + ... + 23102.

It is an arithmetic number, because the mean of its divisors is an integer number (12364464).

Almost surely, 2^231258612 is an apocalyptic number.

It is an amenable number.

231258612 is an abundant number, since it is smaller than the sum of its proper divisors (362235660).

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

231258612 is a wasteful number, since it uses less digits than its factorization.

231258612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31608 (or 31606 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 231258612 is about 15207.1894839250. The cubic root of 231258612 is about 613.8081325330.

The spelling of 231258612 in words is "two hundred thirty-one million, two hundred fifty-eight thousand, six hundred twelve".