13634081 has 2 divisors, whose sum is σ = 13634082. Its totient is φ = 13634080.

The previous prime is 13634063. The next prime is 13634083. The reversal of 13634081 is 18043631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10336225 + 3297856 = 3215^2 + 1816^2 .

It is an emirp because it is prime and its reverse (18043631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13634081 is a prime.

It is a super-2 number, since 2×13634081² = 371776329429122, which contains 22 as substring.

Together with 13634083, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13634081.

It is not a weakly prime, because it can be changed into another prime (13634083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6817040 + 6817041.

It is an arithmetic number, because the mean of its divisors is an integer number (6817041).

Almost surely, 2^13634081 is an apocalyptic number.

It is an amenable number.

13634081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13634081 is an equidigital number, since it uses as much as digits as its factorization.

13634081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13634081 is about 3692.4356460201. The cubic root of 13634081 is about 238.8958598130.

The spelling of 13634081 in words is "thirteen million, six hundred thirty-four thousand, eighty-one".