13660001 has 2 divisors, whose sum is σ = 13660002. Its totient is φ = 13660000.

The previous prime is 13659991. The next prime is 13660007. The reversal of 13660001 is 10006631.

13660001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9759376 + 3900625 = 3124^2 + 1975^2 .

It is an emirp because it is prime and its reverse (10006631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13660001 - 2⁶ = 13659937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13660007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6830000 + 6830001.

It is an arithmetic number, because the mean of its divisors is an integer number (6830001).

Almost surely, 2^13660001 is an apocalyptic number.

It is an amenable number.

13660001 is a deficient number, since it is larger than the sum of its proper divisors (1).

13660001 is an equidigital number, since it uses as much as digits as its factorization.

13660001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 13660001 is about 3695.9438577987. The cubic root of 13660001 is about 239.0471537360.

Adding to 13660001 its reverse (10006631), we get a palindrome (23666632).

The spelling of 13660001 in words is "thirteen million, six hundred sixty thousand, one".