231575952 has 80 divisors (see below), whose sum is σ = 650117120. Its totient is φ = 70761600.

The previous prime is 231575951. The next prime is 231575987. The reversal of 231575952 is 259575132.

It is a self number, because there is not a number n which added to its sum of digits gives 231575952.

It is not an unprimeable number, because it can be changed into a prime (231575951) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24177 + ... + 32367.

It is an arithmetic number, because the mean of its divisors is an integer number (8126464).

Almost surely, 2^231575952 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 231575952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325058560).

231575952 is an abundant number, since it is smaller than the sum of its proper divisors (418541168).

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

231575952 is a wasteful number, since it uses less digits than its factorization.

231575952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252 (or 8246 counting only the distinct ones).

The product of its digits is 94500, while the sum is 39.

The square root of 231575952 is about 15217.6197876015. The cubic root of 231575952 is about 614.0887661809.

The spelling of 231575952 in words is "two hundred thirty-one million, five hundred seventy-five thousand, nine hundred fifty-two".