13421219 has 4 divisors (see below), whose sum is σ = 15338544. Its totient is φ = 11503896.

The previous prime is 13421207. The next prime is 13421251. The reversal of 13421219 is 91212431.

13421219 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 91212431 = 3583 ⋅25457.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13421219 is a prime.

It is a super-2 number, since 2×13421219² = 360258238891922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 13421194 and 13421203.

It is not an unprimeable number, because it can be changed into a prime (13421299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958652 + ... + 958665.

It is an arithmetic number, because the mean of its divisors is an integer number (3834636).

Almost surely, 2^13421219 is an apocalyptic number.

13421219 is a deficient number, since it is larger than the sum of its proper divisors (1917325).

13421219 is an equidigital number, since it uses as much as digits as its factorization.

13421219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917324.

The product of its digits is 432, while the sum is 23.

The square root of 13421219 is about 3663.4981916196. The cubic root of 13421219 is about 237.6460796611.

The spelling of 13421219 in words is "thirteen million, four hundred twenty-one thousand, two hundred nineteen".