13820045 has 8 divisors (see below), whose sum is σ = 16604160. Its totient is φ = 11042640.

The previous prime is 13820041. The next prime is 13820047. The reversal of 13820045 is 54002831.

13820045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13820045 - 2² = 13820041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13820045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13820041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6416 + ... + 8294.

It is an arithmetic number, because the mean of its divisors is an integer number (2075520).

Almost surely, 2^13820045 is an apocalyptic number.

It is an amenable number.

13820045 is a deficient number, since it is larger than the sum of its proper divisors (2784115).

13820045 is a wasteful number, since it uses less digits than its factorization.

13820045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 13820045 is about 3717.5321114955. The cubic root of 13820045 is about 239.9771100855.

Adding to 13820045 its reverse (54002831), we get a palindrome (67822876).

The spelling of 13820045 in words is "thirteen million, eight hundred twenty thousand, forty-five".