331572 has 12 divisors (see below), whose sum is σ = 773696. Its totient is φ = 110520.

The previous prime is 331553. The next prime is 331577. The reversal of 331572 is 275133.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331577) by changing a digit.

331572 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13804 + ... + 13827.

2³³¹⁵⁷² is an apocalyptic number.

It is an amenable number.

331572 is an abundant number, since it is smaller than the sum of its proper divisors (442124).

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

331572 is a wasteful number, since it uses less digits than its factorization.

331572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27638 (or 27636 counting only the distinct ones).

The product of its digits is 630, while the sum is 21.

The square root of 331572 is about 575.8228894374. The cubic root of 331572 is about 69.2137876678.

It can be divided in two parts, 331 and 572, that added together give a triangular number (903 = T₄₂).

The spelling of 331572 in words is "three hundred thirty-one thousand, five hundred seventy-two".