1364725709 has 2 divisors, whose sum is σ = 1364725710. Its totient is φ = 1364725708.

The previous prime is 1364725693. The next prime is 1364725763. The reversal of 1364725709 is 9075274631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1357554025 + 7171684 = 36845^2 + 2678^2 .

It is a cyclic number.

It is not a de Polignac number, because 1364725709 - 2⁴ = 1364725693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1364725709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1364725799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682362854 + 682362855.

It is an arithmetic number, because the mean of its divisors is an integer number (682362855).

Almost surely, 2^1364725709 is an apocalyptic number.

It is an amenable number.

1364725709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1364725709 is an equidigital number, since it uses as much as digits as its factorization.

1364725709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 1364725709 is about 36942.1941551933. The cubic root of 1364725709 is about 1109.2134429860.

The spelling of 1364725709 in words is "one billion, three hundred sixty-four million, seven hundred twenty-five thousand, seven hundred nine".