13206215 has 8 divisors (see below), whose sum is σ = 17288208. Its totient is φ = 9604480.

The previous prime is 13206191. The next prime is 13206227. The reversal of 13206215 is 51260231.

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

It is not a de Polignac number, because 13206215 - 2¹⁴ = 13189831 is a prime.

It is a super-2 number, since 2×13206215² = 348808229252450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120002 + ... + 120111.

It is an arithmetic number, because the mean of its divisors is an integer number (2161026).

Almost surely, 2^13206215 is an apocalyptic number.

13206215 is a deficient number, since it is larger than the sum of its proper divisors (4081993).

13206215 is a wasteful number, since it uses less digits than its factorization.

13206215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240129.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13206215 is about 3634.0356354885. The cubic root of 13206215 is about 236.3702354487.

Adding to 13206215 its reverse (51260231), we get a palindrome (64466446).

The spelling of 13206215 in words is "thirteen million, two hundred six thousand, two hundred fifteen".