14381491 has 4 divisors (see below), whose sum is σ = 14523984. Its totient is φ = 14239000.

The previous prime is 14381467. The next prime is 14381503. The reversal of 14381491 is 19418341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14381491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14381401) 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, 71095 + ... + 71296.

It is an arithmetic number, because the mean of its divisors is an integer number (3630996).

Almost surely, 2^14381491 is an apocalyptic number.

14381491 is a deficient number, since it is larger than the sum of its proper divisors (142493).

14381491 is a wasteful number, since it uses less digits than its factorization.

14381491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142492.

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

The square root of 14381491 is about 3792.2936331460. The cubic root of 14381491 is about 243.1837985784.

The spelling of 14381491 in words is "fourteen million, three hundred eighty-one thousand, four hundred ninety-one".