312132242 has 16 divisors (see below), whose sum is σ = 491230464. Its totient is φ = 148554000.

The previous prime is 312132229. The next prime is 312132263. The reversal of 312132242 is 242231213.

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, 37484 + ... + 45047.

It is an arithmetic number, because the mean of its divisors is an integer number (30701904).

Almost surely, 2^312132242 is an apocalyptic number.

312132242 is a deficient number, since it is larger than the sum of its proper divisors (179098222).

312132242 is a wasteful number, since it uses less digits than its factorization.

312132242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82625.

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

The square root of 312132242 is about 17667.2647005698. The cubic root of 312132242 is about 678.3380999785.

Adding to 312132242 its reverse (242231213), we get a palindrome (554363455).

The spelling of 312132242 in words is "three hundred twelve million, one hundred thirty-two thousand, two hundred forty-two".