231756252 has 96 divisors (see below), whose sum is σ = 673838592. Its totient is φ = 60362496.

The previous prime is 231756241. The next prime is 231756253. The reversal of 231756252 is 252657132.

231756252 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231756253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89358 + ... + 91914.

It is an arithmetic number, because the mean of its divisors is an integer number (7019152).

Almost surely, 2^231756252 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 231756252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336919296).

231756252 is an abundant number, since it is smaller than the sum of its proper divisors (442082340).

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

231756252 is a wasteful number, since it uses less digits than its factorization.

231756252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667 (or 2665 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 231756252 is about 15223.5426888750. The cubic root of 231756252 is about 614.2480968903.

The spelling of 231756252 in words is "two hundred thirty-one million, seven hundred fifty-six thousand, two hundred fifty-two".