14431157 has 4 divisors (see below), whose sum is σ = 15541260. Its totient is φ = 13321056.

The previous prime is 14431133. The next prime is 14431163. The reversal of 14431157 is 75113441.

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 5134756 + 9296401 = 2266^2 + 3049^2 .

It is a cyclic number.

It is not a de Polignac number, because 14431157 - 2⁸ = 14430901 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 (14431177) 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, 555032 + ... + 555057.

It is an arithmetic number, because the mean of its divisors is an integer number (3885315).

Almost surely, 2^14431157 is an apocalyptic number.

It is an amenable number.

14431157 is a deficient number, since it is larger than the sum of its proper divisors (1110103).

14431157 is a wasteful number, since it uses less digits than its factorization.

14431157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110102.

The product of its digits is 1680, while the sum is 26.

The square root of 14431157 is about 3798.8362691751. The cubic root of 14431157 is about 243.4634193200.

Adding to 14431157 its reverse (75113441), we get a palindrome (89544598).

The spelling of 14431157 in words is "fourteen million, four hundred thirty-one thousand, one hundred fifty-seven".