13009511 has 2 divisors, whose sum is σ = 13009512. Its totient is φ = 13009510.

The previous prime is 13009501. The next prime is 13009517. The reversal of 13009511 is 11590031.

It is a strong prime.

It is an emirp because it is prime and its reverse (11590031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13009511 - 2¹⁸ = 12747367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13009517) 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, 6504755 + 6504756.

It is an arithmetic number, because the mean of its divisors is an integer number (6504756).

Almost surely, 2^13009511 is an apocalyptic number.

13009511 is a deficient number, since it is larger than the sum of its proper divisors (1).

13009511 is an equidigital number, since it uses as much as digits as its factorization.

13009511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 13009511 is about 3606.8699727049. The cubic root of 13009511 is about 235.1907972146.

Adding to 13009511 its reverse (11590031), we get a palindrome (24599542).

The spelling of 13009511 in words is "thirteen million, nine thousand, five hundred eleven".