14081509 has 4 divisors (see below), whose sum is σ = 15164716. Its totient is φ = 12998304.

The previous prime is 14081503. The next prime is 14081519. The reversal of 14081509 is 90518041.

It is a happy number.

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 6502500 + 7579009 = 2550^2 + 2753^2 .

It is a cyclic number.

It is not a de Polignac number, because 14081509 - 2⁵ = 14081477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14081503) 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, 541584 + ... + 541609.

It is an arithmetic number, because the mean of its divisors is an integer number (3791179).

Almost surely, 2^14081509 is an apocalyptic number.

It is an amenable number.

14081509 is a deficient number, since it is larger than the sum of its proper divisors (1083207).

14081509 is a wasteful number, since it uses less digits than its factorization.

14081509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083206.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 14081509 is about 3752.5336773972. The cubic root of 14081509 is about 241.4810556291.

The spelling of 14081509 in words is "fourteen million, eighty-one thousand, five hundred nine".