312283817 has 2 divisors, whose sum is σ = 312283818. Its totient is φ = 312283816.

The previous prime is 312283789. The next prime is 312283831. The reversal of 312283817 is 718382213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224880016 + 87403801 = 14996^2 + 9349^2 .

It is an emirp because it is prime and its reverse (718382213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312283817 - 2¹⁶ = 312218281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312283117) 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 as a sum of consecutive naturals, namely, 156141908 + 156141909.

It is an arithmetic number, because the mean of its divisors is an integer number (156141909).

Almost surely, 2^312283817 is an apocalyptic number.

It is an amenable number.

312283817 is a deficient number, since it is larger than the sum of its proper divisors (1).

312283817 is an equidigital number, since it uses as much as digits as its factorization.

312283817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 312283817 is about 17671.5538931923. The cubic root of 312283817 is about 678.4478851323.

The spelling of 312283817 in words is "three hundred twelve million, two hundred eighty-three thousand, eight hundred seventeen".