13630009 has 2 divisors, whose sum is σ = 13630010. Its totient is φ = 13630008.

The previous prime is 13629997. The next prime is 13630031. The reversal of 13630009 is 90003631.

It is an a-pointer prime, because the next prime (13630031) can be obtained adding 13630009 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9517225 + 4112784 = 3085^2 + 2028^2 .

It is an emirp because it is prime and its reverse (90003631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13630009 - 2¹¹ = 13627961 is a prime.

It is not a weakly prime, because it can be changed into another prime (13630109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6815004 + 6815005.

It is an arithmetic number, because the mean of its divisors is an integer number (6815005).

Almost surely, 2^13630009 is an apocalyptic number.

It is an amenable number.

13630009 is a deficient number, since it is larger than the sum of its proper divisors (1).

13630009 is an equidigital number, since it uses as much as digits as its factorization.

13630009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 13630009 is about 3691.8842072849. The cubic root of 13630009 is about 238.8720743008.

The spelling of 13630009 in words is "thirteen million, six hundred thirty thousand, nine".