320212132 has 24 divisors (see below), whose sum is σ = 579985560. Its totient is φ = 154583040.

The previous prime is 320212127. The next prime is 320212157. The reversal of 320212132 is 231212023.

It can be written as a sum of positive squares in 4 ways, for example, as 30735936 + 289476196 = 5544^2 + 17014^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5844 + ... + 25972.

It is an arithmetic number, because the mean of its divisors is an integer number (24166065).

Almost surely, 2^320212132 is an apocalyptic number.

It is an amenable number.

320212132 is a deficient number, since it is larger than the sum of its proper divisors (259773428).

320212132 is a wasteful number, since it uses less digits than its factorization.

320212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20271 (or 20269 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 320212132 is about 17894.4721073297. The cubic root of 320212132 is about 684.1414872090.

Adding to 320212132 its reverse (231212023), we get a palindrome (551424155).

The spelling of 320212132 in words is "three hundred twenty million, two hundred twelve thousand, one hundred thirty-two".