14315809 has 2 divisors, whose sum is σ = 14315810. Its totient is φ = 14315808.

The previous prime is 14315803. The next prime is 14315813. The reversal of 14315809 is 90851341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7700625 + 6615184 = 2775^2 + 2572^2 .

It is a cyclic number.

It is not a de Polignac number, because 14315809 - 2¹³ = 14307617 is a prime.

It is not a weakly prime, because it can be changed into another prime (14315803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7157904 + 7157905.

It is an arithmetic number, because the mean of its divisors is an integer number (7157905).

Almost surely, 2^14315809 is an apocalyptic number.

It is an amenable number.

14315809 is a deficient number, since it is larger than the sum of its proper divisors (1).

14315809 is an equidigital number, since it uses as much as digits as its factorization.

14315809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 14315809 is about 3783.6237920808. The cubic root of 14315809 is about 242.8130169789.

The spelling of 14315809 in words is "fourteen million, three hundred fifteen thousand, eight hundred nine".