1344013409 has 2 divisors, whose sum is σ = 1344013410. Its totient is φ = 1344013408.

The previous prime is 1344013357. The next prime is 1344013453. The reversal of 1344013409 is 9043104431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1306461025 + 37552384 = 36145^2 + 6128^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344013409 - 2¹² = 1344009313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1344013609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672006704 + 672006705.

It is an arithmetic number, because the mean of its divisors is an integer number (672006705).

Almost surely, 2^1344013409 is an apocalyptic number.

It is an amenable number.

1344013409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344013409 is an equidigital number, since it uses as much as digits as its factorization.

1344013409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1344013409 is about 36660.7884394212. The cubic root of 1344013409 is about 1103.5733406210.

The spelling of 1344013409 in words is "one billion, three hundred forty-four million, thirteen thousand, four hundred nine".