1260439 has 2 divisors, whose sum is σ = 1260440. Its totient is φ = 1260438.

The previous prime is 1260437. The next prime is 1260461. The reversal of 1260439 is 9340621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1260439 - 2¹ = 1260437 is a prime.

Together with 1260437, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1260437) 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, 630219 + 630220.

It is an arithmetic number, because the mean of its divisors is an integer number (630220).

2^1260439 is an apocalyptic number.

1260439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260439 is an equidigital number, since it uses as much as digits as its factorization.

1260439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1260439 is about 1122.6927451445. The cubic root of 1260439 is about 108.0207721819.

The spelling of 1260439 in words is "one million, two hundred sixty thousand, four hundred thirty-nine".