14257109 has 4 divisors (see below), whose sum is σ = 14279340. Its totient is φ = 14234880.

The previous prime is 14257081. The next prime is 14257129. The reversal of 14257109 is 90175241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90175241 = 13 ⋅6936557.

It can be written as a sum of positive squares in 2 ways, for example, as 4972900 + 9284209 = 2230^2 + 3047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14257109 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 (14257129) 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, 10124 + ... + 11445.

It is an arithmetic number, because the mean of its divisors is an integer number (3569835).

Almost surely, 2^14257109 is an apocalyptic number.

It is an amenable number.

14257109 is a deficient number, since it is larger than the sum of its proper divisors (22231).

14257109 is an equidigital number, since it uses as much as digits as its factorization.

14257109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22230.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 14257109 is about 3775.8587102804. The cubic root of 14257109 is about 242.4806885816.

The spelling of 14257109 in words is "fourteen million, two hundred fifty-seven thousand, one hundred nine".