13951009 has 2 divisors, whose sum is σ = 13951010. Its totient is φ = 13951008.

The previous prime is 13950991. The next prime is 13951027. The reversal of 13951009 is 90015931.

It is a balanced prime because it is at equal distance from previous prime (13950991) and next prime (13951027).

It can be written as a sum of positive squares in only one way, i.e., 13950225 + 784 = 3735^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 13951009 - 2²¹ = 11853857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13951079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6975504 + 6975505.

It is an arithmetic number, because the mean of its divisors is an integer number (6975505).

Almost surely, 2^13951009 is an apocalyptic number.

It is an amenable number.

13951009 is a deficient number, since it is larger than the sum of its proper divisors (1).

13951009 is an equidigital number, since it uses as much as digits as its factorization.

13951009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 13951009 is about 3735.1049516714. The cubic root of 13951009 is about 240.7327662336.

The spelling of 13951009 in words is "thirteen million, nine hundred fifty-one thousand, nine".