1254257 has 2 divisors, whose sum is σ = 1254258. Its totient is φ = 1254256.

The previous prime is 1254251. The next prime is 1254269. The reversal of 1254257 is 7524521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 758641 + 495616 = 871^2 + 704^2 .

It is an emirp because it is prime and its reverse (7524521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1254257 - 2⁴ = 1254241 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627128 + 627129.

It is an arithmetic number, because the mean of its divisors is an integer number (627129).

2^1254257 is an apocalyptic number.

It is an amenable number.

1254257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254257 is an equidigital number, since it uses as much as digits as its factorization.

1254257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2800, while the sum is 26.

The square root of 1254257 is about 1119.9361588948. The cubic root of 1254257 is about 107.8438816579.

Adding to 1254257 its reverse (7524521), we get a palindrome (8778778).

The spelling of 1254257 in words is "one million, two hundred fifty-four thousand, two hundred fifty-seven".