13809113 has 2 divisors, whose sum is σ = 13809114. Its totient is φ = 13809112.

The previous prime is 13809073. The next prime is 13809137. The reversal of 13809113 is 31190831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10942864 + 2866249 = 3308^2 + 1693^2 .

It is a cyclic number.

It is not a de Polignac number, because 13809113 - 2¹⁶ = 13743577 is a prime.

It is not a weakly prime, because it can be changed into another prime (13809163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6904556 + 6904557.

It is an arithmetic number, because the mean of its divisors is an integer number (6904557).

Almost surely, 2^13809113 is an apocalyptic number.

It is an amenable number.

13809113 is a deficient number, since it is larger than the sum of its proper divisors (1).

13809113 is an equidigital number, since it uses as much as digits as its factorization.

13809113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 13809113 is about 3716.0614903416. The cubic root of 13809113 is about 239.9138174357.

Adding to 13809113 its reverse (31190831), we get a palindrome (44999944).

The spelling of 13809113 in words is "thirteen million, eight hundred nine thousand, one hundred thirteen".