231533352 has 24 divisors (see below), whose sum is σ = 627069690. Its totient is φ = 77177760.

The previous prime is 231533347. The next prime is 231533363. The reversal of 231533352 is 253335132.

It can be written as a sum of positive squares in only one way, i.e., 212401476 + 19131876 = 14574^2 + 4374^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1607799 + ... + 1607942.

Almost surely, 2^231533352 is an apocalyptic number.

It is an amenable number.

231533352 is an abundant number, since it is smaller than the sum of its proper divisors (395536338).

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

231533352 is a wasteful number, since it uses less digits than its factorization.

231533352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215753 (or 3215746 counting only the distinct ones).

The product of its digits is 8100, while the sum is 27.

The square root of 231533352 is about 15216.2200299549. The cubic root of 231533352 is about 614.0511085780.

Adding to 231533352 its reverse (253335132), we get a palindrome (484868484).

The spelling of 231533352 in words is "two hundred thirty-one million, five hundred thirty-three thousand, three hundred fifty-two".