14155381 has 4 divisors (see below), whose sum is σ = 14168812. Its totient is φ = 14141952.

The previous prime is 14155369. The next prime is 14155387. The reversal of 14155381 is 18355141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5803281 + 8352100 = 2409^2 + 2890^2 .

It is a cyclic number.

It is not a de Polignac number, because 14155381 - 2¹⁵ = 14122613 is a prime.

It is a super-2 number, since 2×14155381² = 400749622510322, 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 (14155387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4986 + ... + 7291.

It is an arithmetic number, because the mean of its divisors is an integer number (3542203).

Almost surely, 2^14155381 is an apocalyptic number.

It is an amenable number.

14155381 is a deficient number, since it is larger than the sum of its proper divisors (13431).

14155381 is a wasteful number, since it uses less digits than its factorization.

14155381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13430.

The product of its digits is 2400, while the sum is 28.

The square root of 14155381 is about 3762.3637516859. The cubic root of 14155381 is about 241.9025915371.

The spelling of 14155381 in words is "fourteen million, one hundred fifty-five thousand, three hundred eighty-one".