14312402009 has 2 divisors, whose sum is σ = 14312402010. Its totient is φ = 14312402008.

The previous prime is 14312401993. The next prime is 14312402011. The reversal of 14312402009 is 90020421341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13800375625 + 512026384 = 117475^2 + 22628^2 .

It is a cyclic number.

It is not a de Polignac number, because 14312402009 - 2⁴ = 14312401993 is a prime.

Together with 14312402011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14312402309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7156201004 + 7156201005.

It is an arithmetic number, because the mean of its divisors is an integer number (7156201005).

Almost surely, 2^14312402009 is an apocalyptic number.

It is an amenable number.

14312402009 is a deficient number, since it is larger than the sum of its proper divisors (1).

14312402009 is an equidigital number, since it uses as much as digits as its factorization.

14312402009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 14312402009 in words is "fourteen billion, three hundred twelve million, four hundred two thousand, nine".