314432309 has 2 divisors, whose sum is σ = 314432310. Its totient is φ = 314432308.

The previous prime is 314432281. The next prime is 314432329. The reversal of 314432309 is 903234413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167780209 + 146652100 = 12953^2 + 12110^2 .

It is a cyclic number.

It is not a de Polignac number, because 314432309 - 2²⁴ = 297655093 is a prime.

It is a Sophie Germain prime.

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 (314432329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157216154 + 157216155.

It is an arithmetic number, because the mean of its divisors is an integer number (157216155).

Almost surely, 2^314432309 is an apocalyptic number.

It is an amenable number.

314432309 is a deficient number, since it is larger than the sum of its proper divisors (1).

314432309 is an equidigital number, since it uses as much as digits as its factorization.

314432309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 314432309 is about 17732.2392550969. The cubic root of 314432309 is about 680.0002227508. Note that the first 3 decimals are identical.

It can be divided in two parts, 3144 and 32309, that added together give a palindrome (35453).

The spelling of 314432309 in words is "three hundred fourteen million, four hundred thirty-two thousand, three hundred nine".