14091409 has 8 divisors (see below), whose sum is σ = 14398920. Its totient is φ = 13787136.

The previous prime is 14091359. The next prime is 14091431. The reversal of 14091409 is 90419041.

It can be written as a sum of positive squares in 4 ways, for example, as 253009 + 13838400 = 503^2 + 3720^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14091409 - 2¹³ = 14083217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14091449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9297 + ... + 10705.

It is an arithmetic number, because the mean of its divisors is an integer number (1799865).

Almost surely, 2^14091409 is an apocalyptic number.

It is an amenable number.

14091409 is a deficient number, since it is larger than the sum of its proper divisors (307511).

14091409 is a wasteful number, since it uses less digits than its factorization.

14091409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 14091409 is about 3753.8525543766. The cubic root of 14091409 is about 241.5376334295.

The spelling of 14091409 in words is "fourteen million, ninety-one thousand, four hundred nine".