312132412 has 6 divisors (see below), whose sum is σ = 546231728. Its totient is φ = 156066204.

The previous prime is 312132409. The next prime is 312132419. The reversal of 312132412 is 214231213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312132412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312132419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39016548 + ... + 39016555.

Almost surely, 2^312132412 is an apocalyptic number.

It is an amenable number.

312132412 is a deficient number, since it is larger than the sum of its proper divisors (234099316).

312132412 is a wasteful number, since it uses less digits than its factorization.

312132412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78033107 (or 78033105 counting only the distinct ones).

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

The square root of 312132412 is about 17667.2695117270. The cubic root of 312132412 is about 678.3382231287.

Adding to 312132412 its reverse (214231213), we get a palindrome (526363625).

The spelling of 312132412 in words is "three hundred twelve million, one hundred thirty-two thousand, four hundred twelve".