312765073 has 2 divisors, whose sum is σ = 312765074. Its totient is φ = 312765072.

The previous prime is 312765071. The next prime is 312765127. The reversal of 312765073 is 370567213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306530064 + 6235009 = 17508^2 + 2497^2 .

It is a cyclic number.

It is not a de Polignac number, because 312765073 - 2¹ = 312765071 is a prime.

Together with 312765071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (312765071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156382536 + 156382537.

It is an arithmetic number, because the mean of its divisors is an integer number (156382537).

Almost surely, 2^312765073 is an apocalyptic number.

It is an amenable number.

312765073 is a deficient number, since it is larger than the sum of its proper divisors (1).

312765073 is an equidigital number, since it uses as much as digits as its factorization.

312765073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 312765073 is about 17685.1653370841. The cubic root of 312765073 is about 678.7962216092.

The spelling of 312765073 in words is "three hundred twelve million, seven hundred sixty-five thousand, seventy-three".