13250009 has 2 divisors, whose sum is σ = 13250010. Its totient is φ = 13250008.

The previous prime is 13249997. The next prime is 13250101. The reversal of 13250009 is 90005231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10705984 + 2544025 = 3272^2 + 1595^2 .

It is an emirp because it is prime and its reverse (90005231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13250009 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (13250509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6625004 + 6625005.

It is an arithmetic number, because the mean of its divisors is an integer number (6625005).

Almost surely, 2^13250009 is an apocalyptic number.

It is an amenable number.

13250009 is a deficient number, since it is larger than the sum of its proper divisors (1).

13250009 is an equidigital number, since it uses as much as digits as its factorization.

13250009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13250009 is about 3640.0561808851. The cubic root of 13250009 is about 236.6312281350.

The spelling of 13250009 in words is "thirteen million, two hundred fifty thousand, nine".