14147257 has 2 divisors, whose sum is σ = 14147258. Its totient is φ = 14147256.

The previous prime is 14147249. The next prime is 14147279. The reversal of 14147257 is 75274141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7485696 + 6661561 = 2736^2 + 2581^2 .

It is an emirp because it is prime and its reverse (75274141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14147257 - 2³ = 14147249 is a prime.

It is equal to p₉₁₉₀₃₉ and since 14147257 and 919039 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (14147207) 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 as a sum of consecutive naturals, namely, 7073628 + 7073629.

It is an arithmetic number, because the mean of its divisors is an integer number (7073629).

Almost surely, 2^14147257 is an apocalyptic number.

It is an amenable number.

14147257 is a deficient number, since it is larger than the sum of its proper divisors (1).

14147257 is an equidigital number, since it uses as much as digits as its factorization.

14147257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7840, while the sum is 31.

The square root of 14147257 is about 3761.2839563107. The cubic root of 14147257 is about 241.8563054233.

The spelling of 14147257 in words is "fourteen million, one hundred forty-seven thousand, two hundred fifty-seven".