13215422 has 8 divisors (see below), whose sum is σ = 21625272. Its totient is φ = 6007000.

The previous prime is 13215421. The next prime is 13215427. The reversal of 13215422 is 22451231.

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

It is a junction number, because it is equal to n+sod(n) for n = 13215394 and 13215403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215421) 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, 300329 + ... + 300372.

It is an arithmetic number, because the mean of its divisors is an integer number (2703159).

Almost surely, 2^13215422 is an apocalyptic number.

13215422 is a deficient number, since it is larger than the sum of its proper divisors (8409850).

13215422 is a wasteful number, since it uses less digits than its factorization.

13215422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600714.

The product of its digits is 480, while the sum is 20.

The square root of 13215422 is about 3635.3021882644. The cubic root of 13215422 is about 236.4251529052.

Adding to 13215422 its reverse (22451231), we get a palindrome (35666653).

The spelling of 13215422 in words is "thirteen million, two hundred fifteen thousand, four hundred twenty-two".