312612772 has 12 divisors (see below), whose sum is σ = 547823836. Its totient is φ = 156091680.

The previous prime is 312612743. The next prime is 312612841. The reversal of 312612772 is 277216213.

It can be written as a sum of positive squares in 2 ways, for example, as 277755556 + 34857216 = 16666^2 + 5904^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 50379 + ... + 56242.

Almost surely, 2^312612772 is an apocalyptic number.

It is an amenable number.

312612772 is a deficient number, since it is larger than the sum of its proper divisors (235211064).

312612772 is a wasteful number, since it uses less digits than its factorization.

312612772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107358 (or 107356 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 312612772 is about 17680.8589157880. The cubic root of 312612772 is about 678.6860237457.

Adding to 312612772 its reverse (277216213), we get a palindrome (589828985).

The spelling of 312612772 in words is "three hundred twelve million, six hundred twelve thousand, seven hundred seventy-two".