13215873 has 8 divisors (see below), whose sum is σ = 19223136. Its totient is φ = 8009600.

The previous prime is 13215871. The next prime is 13215893. The reversal of 13215873 is 37851231.

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 13215873 - 2¹ = 13215871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13215873.

It is not an unprimeable number, because it can be changed into a prime (13215871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200208 + ... + 200273.

It is an arithmetic number, because the mean of its divisors is an integer number (2402892).

Almost surely, 2^13215873 is an apocalyptic number.

It is an amenable number.

13215873 is a deficient number, since it is larger than the sum of its proper divisors (6007263).

13215873 is a wasteful number, since it uses less digits than its factorization.

13215873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400495.

The product of its digits is 5040, while the sum is 30.

The square root of 13215873 is about 3635.3642183418. The cubic root of 13215873 is about 236.4278423522.

It can be divided in two parts, 132158 and 73, that added together give a palindrome (132231).

The spelling of 13215873 in words is "thirteen million, two hundred fifteen thousand, eight hundred seventy-three".