13826513 has 2 divisors, whose sum is σ = 13826514. Its totient is φ = 13826512.

The previous prime is 13826489. The next prime is 13826539. The reversal of 13826513 is 31562831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8862529 + 4963984 = 2977^2 + 2228^2 .

It is a cyclic number.

It is not a de Polignac number, because 13826513 - 2⁸ = 13826257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13826563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6913256 + 6913257.

It is an arithmetic number, because the mean of its divisors is an integer number (6913257).

Almost surely, 2^13826513 is an apocalyptic number.

It is an amenable number.

13826513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13826513 is an equidigital number, since it uses as much as digits as its factorization.

13826513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 13826513 is about 3718.4019416948. The cubic root of 13826513 is about 240.0145419429.

The spelling of 13826513 in words is "thirteen million, eight hundred twenty-six thousand, five hundred thirteen".