231055512 has 64 divisors (see below), whose sum is σ = 599364480. Its totient is φ = 74172672.

The previous prime is 231055477. The next prime is 231055549. The reversal of 231055512 is 215550132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73803 + ... + 76869.

It is an arithmetic number, because the mean of its divisors is an integer number (9365070).

Almost surely, 2^231055512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231055512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299682240).

231055512 is an abundant number, since it is smaller than the sum of its proper divisors (368308968).

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

231055512 is a wasteful number, since it uses less digits than its factorization.

231055512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192 (or 3188 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 231055512 is about 15200.5102545934. The cubic root of 231055512 is about 613.6283901176.

The spelling of 231055512 in words is "two hundred thirty-one million, fifty-five thousand, five hundred twelve".