13601819 has 16 divisors (see below), whose sum is σ = 17957376. Its totient is φ = 9974400.

The previous prime is 13601813. The next prime is 13601821. The reversal of 13601819 is 91810631.

It is a happy number.

13601819 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13601819 - 2⁸ = 13601563 is a prime.

It is a super-2 number, since 2×13601819² = 370018960217522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13601791 and 13601800.

It is not an unprimeable number, because it can be changed into a prime (13601813) 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 15 ways as a sum of consecutive naturals, for example, 3887 + ... + 6504.

It is an arithmetic number, because the mean of its divisors is an integer number (1122336).

Almost surely, 2^13601819 is an apocalyptic number.

13601819 is a deficient number, since it is larger than the sum of its proper divisors (4355557).

13601819 is a wasteful number, since it uses less digits than its factorization.

13601819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10426.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 13601819 is about 3688.0643974855. The cubic root of 13601819 is about 238.7072798028.

The spelling of 13601819 in words is "thirteen million, six hundred one thousand, eight hundred nineteen".