312047132 has 12 divisors (see below), whose sum is σ = 552662376. Its totient is φ = 154143600.

The previous prime is 312047129. The next prime is 312047143. The reversal of 312047132 is 231740213.

It is a junction number, because it is equal to n+sod(n) for n = 312047098 and 312047107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469619 + ... + 470282.

It is an arithmetic number, because the mean of its divisors is an integer number (46055198).

Almost surely, 2^312047132 is an apocalyptic number.

It is an amenable number.

312047132 is a deficient number, since it is larger than the sum of its proper divisors (240615244).

312047132 is a wasteful number, since it uses less digits than its factorization.

312047132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939988 (or 939986 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 312047132 is about 17664.8558443028. The cubic root of 312047132 is about 678.2764395708.

Adding to 312047132 its reverse (231740213), we get a palindrome (543787345).

The spelling of 312047132 in words is "three hundred twelve million, forty-seven thousand, one hundred thirty-two".