312712066 has 16 divisors (see below), whose sum is σ = 485146368. Its totient is φ = 151016400.

The previous prime is 312712063. The next prime is 312712067. The reversal of 312712066 is 660217213.

312712066 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (312712061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28881 + ... + 38203.

It is an arithmetic number, because the mean of its divisors is an integer number (30321648).

Almost surely, 2^312712066 is an apocalyptic number.

312712066 is a deficient number, since it is larger than the sum of its proper divisors (172434302).

312712066 is a wasteful number, since it uses less digits than its factorization.

312712066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9897.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 312712066 is about 17683.6666446752. Note that the first 4 decimals coincide. The cubic root of 312712066 is about 678.7578722886.

Adding to 312712066 its reverse (660217213), we get a palindrome (972929279).

The spelling of 312712066 in words is "three hundred twelve million, seven hundred twelve thousand, sixty-six".