14409557 has 4 divisors (see below), whose sum is σ = 15257196. Its totient is φ = 13561920.

The previous prime is 14409553. The next prime is 14409559. The reversal of 14409557 is 75590441.

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 5564881 + 8844676 = 2359^2 + 2974^2 .

It is not a de Polignac number, because 14409557 - 2² = 14409553 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 (14409553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423794 + ... + 423827.

It is an arithmetic number, because the mean of its divisors is an integer number (3814299).

Almost surely, 2^14409557 is an apocalyptic number.

14409557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

14409557 is a deficient number, since it is larger than the sum of its proper divisors (847639).

14409557 is an equidigital number, since it uses as much as digits as its factorization.

14409557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847638.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 14409557 is about 3795.9922286538. The cubic root of 14409557 is about 243.3418897765.

Adding to 14409557 its reverse (75590441), we get a palindrome (89999998).

The spelling of 14409557 in words is "fourteen million, four hundred nine thousand, five hundred fifty-seven".