314287321 has 2 divisors, whose sum is σ = 314287322. Its totient is φ = 314287320.

The previous prime is 314287319. The next prime is 314287333. The reversal of 314287321 is 123782413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266179225 + 48108096 = 16315^2 + 6936^2 .

It is a cyclic number.

It is not a de Polignac number, because 314287321 - 2¹ = 314287319 is a prime.

Together with 314287319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (314287121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157143660 + 157143661.

It is an arithmetic number, because the mean of its divisors is an integer number (157143661).

Almost surely, 2^314287321 is an apocalyptic number.

It is an amenable number.

314287321 is a deficient number, since it is larger than the sum of its proper divisors (1).

314287321 is an equidigital number, since it uses as much as digits as its factorization.

314287321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 314287321 is about 17728.1505239548. The cubic root of 314287321 is about 679.8956882959.

The spelling of 314287321 in words is "three hundred fourteen million, two hundred eighty-seven thousand, three hundred twenty-one".