331543132 has 6 divisors (see below), whose sum is σ = 580200488. Its totient is φ = 165771564.

The previous prime is 331543127. The next prime is 331543133. The reversal of 331543132 is 231345133.

It is a junction number, because it is equal to n+sod(n) for n = 331543097 and 331543106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331543133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41442888 + ... + 41442895.

Almost surely, 2^331543132 is an apocalyptic number.

It is an amenable number.

331543132 is a deficient number, since it is larger than the sum of its proper divisors (248657356).

331543132 is a wasteful number, since it uses less digits than its factorization.

331543132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82885787 (or 82885785 counting only the distinct ones).

The product of its digits is 3240, while the sum is 25.

The square root of 331543132 is about 18208.3258977864. The cubic root of 331543132 is about 692.1177893203.

Adding to 331543132 its reverse (231345133), we get a palindrome (562888265).

The spelling of 331543132 in words is "three hundred thirty-one million, five hundred forty-three thousand, one hundred thirty-two".