13601601 has 20 divisors (see below), whose sum is σ = 21883092. Its totient is φ = 8369568.

The previous prime is 13601593. The next prime is 13601611. The reversal of 13601601 is 10610631.

13601601 is a `hidden beast` number, since 1 + 3 + 60 + 1 + 601 = 666.

13601601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4511376 + 9090225 = 2124^2 + 3015^2 .

It is not a de Polignac number, because 13601601 - 2³ = 13601593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13601611) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5406 + ... + 7511.

Almost surely, 2^13601601 is an apocalyptic number.

It is an amenable number.

13601601 is a deficient number, since it is larger than the sum of its proper divisors (8281491).

13601601 is a wasteful number, since it uses less digits than its factorization.

13601601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942 (or 12933 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 13601601 is about 3688.0348425686. The cubic root of 13601601 is about 238.7060045208.

The spelling of 13601601 in words is "thirteen million, six hundred one thousand, six hundred one".