1344509 has 2 divisors, whose sum is σ = 1344510. Its totient is φ = 1344508.

The previous prime is 1344503. The next prime is 1344559. The reversal of 1344509 is 9054431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1315609 + 28900 = 1147^2 + 170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672254 + 672255.

It is an arithmetic number, because the mean of its divisors is an integer number (672255).

2^1344509 is an apocalyptic number.

It is an amenable number.

1344509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344509 is an equidigital number, since it uses as much as digits as its factorization.

1344509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1344509 is about 1159.5296460203. The cubic root of 1344509 is about 110.3708967692.

The spelling of 1344509 in words is "one million, three hundred forty-four thousand, five hundred nine".