13211995 has 8 divisors (see below), whose sum is σ = 15873984. Its totient is φ = 10556544.

The previous prime is 13211993. The next prime is 13212007. The reversal of 13211995 is 59911231.

It is a happy number.

13211995 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 13211995 - 2¹ = 13211993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13211993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6547 + ... + 8323.

It is an arithmetic number, because the mean of its divisors is an integer number (1984248).

Almost surely, 2^13211995 is an apocalyptic number.

13211995 is a deficient number, since it is larger than the sum of its proper divisors (2661989).

13211995 is a wasteful number, since it uses less digits than its factorization.

13211995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269.

The product of its digits is 2430, while the sum is 31.

The square root of 13211995 is about 3634.8308076168. The cubic root of 13211995 is about 236.4047146867.

The spelling of 13211995 in words is "thirteen million, two hundred eleven thousand, nine hundred ninety-five".