14394257 has 4 divisors (see below), whose sum is σ = 15240996. Its totient is φ = 13547520.

The previous prime is 14394227. The next prime is 14394269. The reversal of 14394257 is 75249341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75249341 = 1657 ⋅45413.

It can be written as a sum of positive squares in 2 ways, for example, as 4096576 + 10297681 = 2024^2 + 3209^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14394257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14394227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423344 + ... + 423377.

It is an arithmetic number, because the mean of its divisors is an integer number (3810249).

Almost surely, 2^14394257 is an apocalyptic number.

14394257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

14394257 is a deficient number, since it is larger than the sum of its proper divisors (846739).

14394257 is an equidigital number, since it uses as much as digits as its factorization.

14394257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846738.

The product of its digits is 30240, while the sum is 35.

The square root of 14394257 is about 3793.9764100479. The cubic root of 14394257 is about 243.2557328501.

The spelling of 14394257 in words is "fourteen million, three hundred ninety-four thousand, two hundred fifty-seven".