14181381 has 6 divisors (see below), whose sum is σ = 20484230. Its totient is φ = 9454248.

The previous prime is 14181379. The next prime is 14181437. The reversal of 14181381 is 18318141.

14181381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11840481 + 2340900 = 3441^2 + 1530^2 .

It is not a de Polignac number, because 14181381 - 2¹ = 14181379 is a prime.

It is a super-2 number, since 2×14181381² = 402223134134322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14181301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 787846 + ... + 787863.

Almost surely, 2^14181381 is an apocalyptic number.

It is an amenable number.

14181381 is a deficient number, since it is larger than the sum of its proper divisors (6302849).

14181381 is a wasteful number, since it uses less digits than its factorization.

14181381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575715 (or 1575712 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 14181381 is about 3765.8174411408. The cubic root of 14181381 is about 242.0506064054.

The spelling of 14181381 in words is "fourteen million, one hundred eighty-one thousand, three hundred eighty-one".