312063709 has 2 divisors, whose sum is σ = 312063710. Its totient is φ = 312063708.

The previous prime is 312063683. The next prime is 312063721. The reversal of 312063709 is 907360213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310112100 + 1951609 = 17610^2 + 1397^2 .

It is a cyclic number.

It is not a de Polignac number, because 312063709 - 2⁵ = 312063677 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312063749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156031854 + 156031855.

It is an arithmetic number, because the mean of its divisors is an integer number (156031855).

Almost surely, 2^312063709 is an apocalyptic number.

It is an amenable number.

312063709 is a deficient number, since it is larger than the sum of its proper divisors (1).

312063709 is an equidigital number, since it uses as much as digits as its factorization.

312063709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 312063709 is about 17665.3250465424. The cubic root of 312063709 is about 678.2884501383.

The spelling of 312063709 in words is "three hundred twelve million, sixty-three thousand, seven hundred nine".