314295221 has 2 divisors, whose sum is σ = 314295222. Its totient is φ = 314295220.

The previous prime is 314295211. The next prime is 314295239. The reversal of 314295221 is 122592413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312794596 + 1500625 = 17686^2 + 1225^2 .

It is an emirp because it is prime and its reverse (122592413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-314295221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314295211) 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, 157147610 + 157147611.

It is an arithmetic number, because the mean of its divisors is an integer number (157147611).

Almost surely, 2^314295221 is an apocalyptic number.

It is an amenable number.

314295221 is a deficient number, since it is larger than the sum of its proper divisors (1).

314295221 is an equidigital number, since it uses as much as digits as its factorization.

314295221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 314295221 is about 17728.3733320347. The cubic root of 314295221 is about 679.9013849208.

The spelling of 314295221 in words is "three hundred fourteen million, two hundred ninety-five thousand, two hundred twenty-one".