14428181 has 4 divisors (see below), whose sum is σ = 14452332. Its totient is φ = 14404032.

The previous prime is 14428157. The next prime is 14428217. The reversal of 14428181 is 18182441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18182441 = 673 ⋅27017.

It can be written as a sum of positive squares in 2 ways, for example, as 1540081 + 12888100 = 1241^2 + 3590^2 .

It is a cyclic number.

It is not a de Polignac number, because 14428181 - 2¹⁰ = 14427157 is a prime.

It is a super-2 number, since 2×14428181² = 416344813937522, 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 (14428111) 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, 11156 + ... + 12381.

It is an arithmetic number, because the mean of its divisors is an integer number (3613083).

Almost surely, 2^14428181 is an apocalyptic number.

It is an amenable number.

14428181 is a deficient number, since it is larger than the sum of its proper divisors (24151).

14428181 is an equidigital number, since it uses as much as digits as its factorization.

14428181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24150.

The product of its digits is 2048, while the sum is 29.

The square root of 14428181 is about 3798.4445500757. Note that the first 3 decimals coincide. The cubic root of 14428181 is about 243.4466824558.

The spelling of 14428181 in words is "fourteen million, four hundred twenty-eight thousand, one hundred eighty-one".