331132532 has 12 divisors (see below), whose sum is σ = 609981120. Its totient is φ = 156852216.

The previous prime is 331132481. The next prime is 331132547. The reversal of 331132532 is 235231133.

It is a junction number, because it is equal to n+sod(n) for n = 331132498 and 331132507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178428 + ... + 2178579.

It is an arithmetic number, because the mean of its divisors is an integer number (50831760).

Almost surely, 2^331132532 is an apocalyptic number.

It is an amenable number.

331132532 is a deficient number, since it is larger than the sum of its proper divisors (278848588).

331132532 is a wasteful number, since it uses less digits than its factorization.

331132532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357030 (or 4357028 counting only the distinct ones).

The product of its digits is 1620, while the sum is 23.

The square root of 331132532 is about 18197.0473429070. The cubic root of 331132532 is about 691.8319532471.

Adding to 331132532 its reverse (235231133), we get a palindrome (566363665).

The spelling of 331132532 in words is "three hundred thirty-one million, one hundred thirty-two thousand, five hundred thirty-two".