13421215 has 8 divisors (see below), whose sum is σ = 16152480. Its totient is φ = 10705632.

The previous prime is 13421207. The next prime is 13421251. The reversal of 13421215 is 51212431.

13421215 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 a cyclic number.

It is not a de Polignac number, because 13421215 - 2³ = 13421207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13421192 and 13421201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1944 + ... + 5533.

It is an arithmetic number, because the mean of its divisors is an integer number (2019060).

Almost surely, 2^13421215 is an apocalyptic number.

13421215 is a deficient number, since it is larger than the sum of its proper divisors (2731265).

13421215 is an equidigital number, since it uses as much as digits as its factorization.

13421215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7841.

The product of its digits is 240, while the sum is 19.

The square root of 13421215 is about 3663.4976456933. The cubic root of 13421215 is about 237.6460560521.

Adding to 13421215 its reverse (51212431), we get a palindrome (64633646).

The spelling of 13421215 in words is "thirteen million, four hundred twenty-one thousand, two hundred fifteen".