312246212 has 6 divisors (see below), whose sum is σ = 546430878. Its totient is φ = 156123104.

The previous prime is 312246173. The next prime is 312246217. The reversal of 312246212 is 212642213.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 273108676 + 39137536 = 16526^2 + 6256^2 .

It is not an unprimeable number, because it can be changed into a prime (312246217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39030773 + ... + 39030780.

It is an arithmetic number, because the mean of its divisors is an integer number (91071813).

Almost surely, 2^312246212 is an apocalyptic number.

It is an amenable number.

312246212 is a deficient number, since it is larger than the sum of its proper divisors (234184666).

312246212 is a wasteful number, since it uses less digits than its factorization.

312246212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78061557 (or 78061555 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 312246212 is about 17670.4898630457. The cubic root of 312246212 is about 678.4206512984.

Adding to 312246212 its reverse (212642213), we get a palindrome (524888425).

The spelling of 312246212 in words is "three hundred twelve million, two hundred forty-six thousand, two hundred twelve".