312242132 has 24 divisors (see below), whose sum is σ = 550913664. Its totient is φ = 154844352.

The previous prime is 312242093. The next prime is 312242153. The reversal of 312242132 is 231242213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332768 + ... + 333704.

It is an arithmetic number, because the mean of its divisors is an integer number (22954736).

Almost surely, 2^312242132 is an apocalyptic number.

It is an amenable number.

312242132 is a deficient number, since it is larger than the sum of its proper divisors (238671532).

312242132 is a wasteful number, since it uses less digits than its factorization.

312242132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1533 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 312242132 is about 17670.3744159540. The cubic root of 312242132 is about 678.4176963991.

Adding to 312242132 its reverse (231242213), we get a palindrome (543484345).

It can be divided in two parts, 3122 and 42132, that added together give a palindrome (45254).

The spelling of 312242132 in words is "three hundred twelve million, two hundred forty-two thousand, one hundred thirty-two".