13964181 has 32 divisors (see below), whose sum is σ = 23617536. Its totient is φ = 7128000.

The previous prime is 13964177. The next prime is 13964213. The reversal of 13964181 is 18146931.

13964181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13964181 - 2² = 13964177 is a prime.

It is a super-2 number, since 2×13964181² = 389996702001522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13964101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13596 + ... + 14586.

It is an arithmetic number, because the mean of its divisors is an integer number (738048).

Almost surely, 2^13964181 is an apocalyptic number.

13964181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13964181 is a deficient number, since it is larger than the sum of its proper divisors (9653355).

13964181 is a wasteful number, since it uses less digits than its factorization.

13964181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its digits is 5184, while the sum is 33.

The square root of 13964181 is about 3736.8678060643. The cubic root of 13964181 is about 240.8085059062.

The spelling of 13964181 in words is "thirteen million, nine hundred sixty-four thousand, one hundred eighty-one".