1244591 has 2 divisors, whose sum is σ = 1244592. Its totient is φ = 1244590.

The previous prime is 1244567. The next prime is 1244603. The reversal of 1244591 is 1954421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244591 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1244591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622295 + 622296.

It is an arithmetic number, because the mean of its divisors is an integer number (622296).

2^1244591 is an apocalyptic number.

1244591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244591 is an equidigital number, since it uses as much as digits as its factorization.

1244591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 1244591 is about 1115.6123878839. The cubic root of 1244591 is about 107.5661320144.

The spelling of 1244591 in words is "one million, two hundred forty-four thousand, five hundred ninety-one".