9144257 has 2 divisors, whose sum is σ = 9144258. Its totient is φ = 9144256.

The previous prime is 9144253. The next prime is 9144259. The reversal of 9144257 is 7524419.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5180176 + 3964081 = 2276^2 + 1991^2 .

It is a cyclic number.

It is not a de Polignac number, because 9144257 - 2² = 9144253 is a prime.

Together with 9144259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9144253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4572128 + 4572129.

It is an arithmetic number, because the mean of its divisors is an integer number (4572129).

Almost surely, 2^9144257 is an apocalyptic number.

It is an amenable number.

9144257 is a deficient number, since it is larger than the sum of its proper divisors (1).

9144257 is an equidigital number, since it uses as much as digits as its factorization.

9144257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 9144257 is about 3023.9472548310. The cubic root of 9144257 is about 209.1138547712.

The spelling of 9144257 in words is "nine million, one hundred forty-four thousand, two hundred fifty-seven".