13636201 has 2 divisors, whose sum is σ = 13636202. Its totient is φ = 13636200.

The previous prime is 13636199. The next prime is 13636213. The reversal of 13636201 is 10263631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12531600 + 1104601 = 3540^2 + 1051^2 .

It is a cyclic number.

It is not a de Polignac number, because 13636201 - 2¹ = 13636199 is a prime.

Together with 13636199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13636291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6818100 + 6818101.

It is an arithmetic number, because the mean of its divisors is an integer number (6818101).

Almost surely, 2^13636201 is an apocalyptic number.

It is an amenable number.

13636201 is a deficient number, since it is larger than the sum of its proper divisors (1).

13636201 is an equidigital number, since it uses as much as digits as its factorization.

13636201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13636201 is about 3692.7227082466. The cubic root of 13636201 is about 238.9082413583.

Adding to 13636201 its reverse (10263631), we get a palindrome (23899832).

The spelling of 13636201 in words is "thirteen million, six hundred thirty-six thousand, two hundred one".