314321309 has 4 divisors (see below), whose sum is σ = 314529216. Its totient is φ = 314113404.

The previous prime is 314321303. The next prime is 314321339. The reversal of 314321309 is 903123413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 903123413 = 2857 ⋅316109.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-314321309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314321303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101669 + ... + 104714.

It is an arithmetic number, because the mean of its divisors is an integer number (78632304).

Almost surely, 2^314321309 is an apocalyptic number.

It is an amenable number.

314321309 is a deficient number, since it is larger than the sum of its proper divisors (207907).

314321309 is a wasteful number, since it uses less digits than its factorization.

314321309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207906.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 314321309 is about 17729.1090864713. The cubic root of 314321309 is about 679.9201960845.

The spelling of 314321309 in words is "three hundred fourteen million, three hundred twenty-one thousand, three hundred nine".