13271964 has 12 divisors (see below), whose sum is σ = 30967944. Its totient is φ = 4423984.

The previous prime is 13271957. The next prime is 13271969. The reversal of 13271964 is 46917231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13271964² = 352290056834592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13271969) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 552987 + ... + 553010.

It is an arithmetic number, because the mean of its divisors is an integer number (2580662).

Almost surely, 2^13271964 is an apocalyptic number.

It is an amenable number.

13271964 is an abundant number, since it is smaller than the sum of its proper divisors (17695980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13271964 is a wasteful number, since it uses less digits than its factorization.

13271964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106004 (or 1106002 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 13271964 is about 3643.0706828169. The cubic root of 13271964 is about 236.7618537515.

The spelling of 13271964 in words is "thirteen million, two hundred seventy-one thousand, nine hundred sixty-four".