13636361 has 2 divisors, whose sum is σ = 13636362. Its totient is φ = 13636360.

The previous prime is 13636321. The next prime is 13636369. The reversal of 13636361 is 16363631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12924025 + 712336 = 3595^2 + 844^2 .

It is a cyclic number.

It is not a de Polignac number, because 13636361 - 2¹⁸ = 13374217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a nialpdrome in base 11.

It is not a weakly prime, because it can be changed into another prime (13636369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6818180 + 6818181.

It is an arithmetic number, because the mean of its divisors is an integer number (6818181).

Almost surely, 2^13636361 is an apocalyptic number.

It is an amenable number.

13636361 is a deficient number, since it is larger than the sum of its proper divisors (1).

13636361 is an equidigital number, since it uses as much as digits as its factorization.

13636361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 29.

The square root of 13636361 is about 3692.7443724146. The cubic root of 13636361 is about 238.9091757625.

Adding to 13636361 its reverse (16363631), we get a palindrome (29999992).

The spelling of 13636361 in words is "thirteen million, six hundred thirty-six thousand, three hundred sixty-one".