314905691 has 2 divisors, whose sum is σ = 314905692. Its totient is φ = 314905690.

The previous prime is 314905667. The next prime is 314905699. The reversal of 314905691 is 196509413.

It is a strong prime.

It is an emirp because it is prime and its reverse (196509413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 314905691 - 2¹⁸ = 314643547 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (314905699) 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, 157452845 + 157452846.

It is an arithmetic number, because the mean of its divisors is an integer number (157452846).

Almost surely, 2^314905691 is an apocalyptic number.

314905691 is a deficient number, since it is larger than the sum of its proper divisors (1).

314905691 is an equidigital number, since it uses as much as digits as its factorization.

314905691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 314905691 is about 17745.5822953207. The cubic root of 314905691 is about 680.3413014183.

The spelling of 314905691 in words is "three hundred fourteen million, nine hundred five thousand, six hundred ninety-one".