321142132 has 6 divisors (see below), whose sum is σ = 561998738. Its totient is φ = 160571064.

The previous prime is 321142127. The next prime is 321142147. The reversal of 321142132 is 231241123.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 313502436 + 7639696 = 17706^2 + 2764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40142763 + ... + 40142770.

Almost surely, 2^321142132 is an apocalyptic number.

It is an amenable number.

321142132 is a deficient number, since it is larger than the sum of its proper divisors (240856606).

321142132 is a wasteful number, since it uses less digits than its factorization.

321142132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80285537 (or 80285535 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 321142132 is about 17920.4389455169. The cubic root of 321142132 is about 684.8031700448.

Adding to 321142132 its reverse (231241123), we get a palindrome (552383255).

The spelling of 321142132 in words is "three hundred twenty-one million, one hundred forty-two thousand, one hundred thirty-two".