13605201 has 6 divisors (see below), whose sum is σ = 19651970. Its totient is φ = 9070128.

The previous prime is 13605161. The next prime is 13605209. The reversal of 13605201 is 10250631.

It can be written as a sum of positive squares in only one way, i.e., 10732176 + 2873025 = 3276^2 + 1695^2 .

It is not a de Polignac number, because 13605201 - 2¹¹ = 13603153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13605209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 755836 + ... + 755853.

Almost surely, 2^13605201 is an apocalyptic number.

It is an amenable number.

13605201 is a deficient number, since it is larger than the sum of its proper divisors (6046769).

13605201 is a wasteful number, since it uses less digits than its factorization.

13605201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511695 (or 1511692 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 13605201 is about 3688.5228750816. The cubic root of 13605201 is about 238.7270624785.

Adding to 13605201 its reverse (10250631), we get a palindrome (23855832).

It can be divided in two parts, 1360 and 5201, that added together give a 8-th power (6561 = 3⁸).

The spelling of 13605201 in words is "thirteen million, six hundred five thousand, two hundred one".