314243789 has 2 divisors, whose sum is σ = 314243790. Its totient is φ = 314243788.

The previous prime is 314243773. The next prime is 314243791. The reversal of 314243789 is 987342413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292991689 + 21252100 = 17117^2 + 4610^2 .

It is a cyclic number.

It is not a de Polignac number, because 314243789 - 2⁴ = 314243773 is a prime.

It is a Sophie Germain prime.

Together with 314243791, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314243719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157121894 + 157121895.

It is an arithmetic number, because the mean of its divisors is an integer number (157121895).

Almost surely, 2^314243789 is an apocalyptic number.

It is an amenable number.

314243789 is a deficient number, since it is larger than the sum of its proper divisors (1).

314243789 is an equidigital number, since it uses as much as digits as its factorization.

314243789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 314243789 is about 17726.9227165913. The cubic root of 314243789 is about 679.8642960170.

The spelling of 314243789 in words is "three hundred fourteen million, two hundred forty-three thousand, seven hundred eighty-nine".