13825219 has 4 divisors (see below), whose sum is σ = 13858480. Its totient is φ = 13791960.

The previous prime is 13825213. The next prime is 13825243. The reversal of 13825219 is 91252831.

13825219 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-13825219 is a prime.

It is a super-2 number, since 2×13825219² = 382273360795922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13825213) 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 3 ways as a sum of consecutive naturals, for example, 15999 + ... + 16840.

It is an arithmetic number, because the mean of its divisors is an integer number (3464620).

Almost surely, 2^13825219 is an apocalyptic number.

13825219 is a deficient number, since it is larger than the sum of its proper divisors (33261).

13825219 is an equidigital number, since it uses as much as digits as its factorization.

13825219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33260.

The product of its digits is 4320, while the sum is 31.

The square root of 13825219 is about 3718.2279381447. The cubic root of 13825219 is about 240.0070541908.

The spelling of 13825219 in words is "thirteen million, eight hundred twenty-five thousand, two hundred nineteen".