331541252 has 36 divisors (see below), whose sum is σ = 691401564. Its totient is φ = 138620160.

The previous prime is 331541213. The next prime is 331541257. The reversal of 331541252 is 252145133.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51179716 + 280361536 = 7154^2 + 16744^2 .

It is not an unprimeable number, because it can be changed into a prime (331541257) 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 11 ways as a sum of consecutive naturals, for example, 12593 + ... + 28664.

It is an arithmetic number, because the mean of its divisors is an integer number (19205599).

Almost surely, 2^331541252 is an apocalyptic number.

It is an amenable number.

331541252 is an abundant number, since it is smaller than the sum of its proper divisors (359860312).

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

331541252 is a wasteful number, since it uses less digits than its factorization.

331541252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41316 (or 41307 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 331541252 is about 18208.2742729782. The cubic root of 331541252 is about 692.1164811105.

Adding to 331541252 its reverse (252145133), we get a palindrome (583686385).

The spelling of 331541252 in words is "three hundred thirty-one million, five hundred forty-one thousand, two hundred fifty-two".