1257359 has 2 divisors, whose sum is σ = 1257360. Its totient is φ = 1257358.

The previous prime is 1257331. The next prime is 1257397. The reversal of 1257359 is 9537521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1257359 - 2⁸ = 1257103 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1257559) 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 as a sum of consecutive naturals, namely, 628679 + 628680.

It is an arithmetic number, because the mean of its divisors is an integer number (628680).

2^1257359 is an apocalyptic number.

1257359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1257359 is an equidigital number, since it uses as much as digits as its factorization.

1257359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 32.

The square root of 1257359 is about 1121.3202040452. The cubic root of 1257359 is about 107.9327141470.

The spelling of 1257359 in words is "one million, two hundred fifty-seven thousand, three hundred fifty-nine".