13206115 has 16 divisors (see below), whose sum is σ = 17202528. Its totient is φ = 9674496.

The previous prime is 13206043. The next prime is 13206131. The reversal of 13206115 is 51160231.

13206115 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 13206115 - 2⁷ = 13205987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13206092 and 13206101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8164 + ... + 9646.

It is an arithmetic number, because the mean of its divisors is an integer number (1075158).

Almost surely, 2^13206115 is an apocalyptic number.

13206115 is a deficient number, since it is larger than the sum of its proper divisors (3996413).

13206115 is a wasteful number, since it uses less digits than its factorization.

13206115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 13206115 is about 3634.0218766540. The cubic root of 13206115 is about 236.3696388336.

Adding to 13206115 its reverse (51160231), we get a palindrome (64366346).

The spelling of 13206115 in words is "thirteen million, two hundred six thousand, one hundred fifteen".