313015697 has 2 divisors, whose sum is σ = 313015698. Its totient is φ = 313015696.

The previous prime is 313015693. The next prime is 313015733. The reversal of 313015697 is 796510313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211731601 + 101284096 = 14551^2 + 10064^2 .

It is an emirp because it is prime and its reverse (796510313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313015697 - 2² = 313015693 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313015693) 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, 156507848 + 156507849.

It is an arithmetic number, because the mean of its divisors is an integer number (156507849).

Almost surely, 2^313015697 is an apocalyptic number.

It is an amenable number.

313015697 is a deficient number, since it is larger than the sum of its proper divisors (1).

313015697 is an equidigital number, since it uses as much as digits as its factorization.

313015697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 313015697 is about 17692.2496308412. The cubic root of 313015697 is about 678.9774835407.

The spelling of 313015697 in words is "three hundred thirteen million, fifteen thousand, six hundred ninety-seven".