14491381 has 4 divisors (see below), whose sum is σ = 14503852. Its totient is φ = 14478912.

The previous prime is 14491339. The next prime is 14491391. The reversal of 14491381 is 18319441.

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 11902500 + 2588881 = 3450^2 + 1609^2 .

It is a cyclic number.

It is not a de Polignac number, because 14491381 - 2⁹ = 14490869 is a prime.

It is a super-2 number, since 2×14491381² = 420000246574322, 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 (14491391) 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, 4290 + ... + 6883.

It is an arithmetic number, because the mean of its divisors is an integer number (3625963).

Almost surely, 2^14491381 is an apocalyptic number.

It is an amenable number.

14491381 is a deficient number, since it is larger than the sum of its proper divisors (12471).

14491381 is a wasteful number, since it uses less digits than its factorization.

14491381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12470.

The product of its digits is 3456, while the sum is 31.

The square root of 14491381 is about 3806.7546545581. The cubic root of 14491381 is about 243.8016225531.

The spelling of 14491381 in words is "fourteen million, four hundred ninety-one thousand, three hundred eighty-one".