1320754717 has 2 divisors, whose sum is σ = 1320754718. Its totient is φ = 1320754716.

The previous prime is 1320754693. The next prime is 1320754723. The reversal of 1320754717 is 7174570231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1320668281 + 86436 = 36341^2 + 294^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320754717 - 2²³ = 1312366109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320754817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660377358 + 660377359.

It is an arithmetic number, because the mean of its divisors is an integer number (660377359).

Almost surely, 2^1320754717 is an apocalyptic number.

It is an amenable number.

1320754717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320754717 is an equidigital number, since it uses as much as digits as its factorization.

1320754717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 1320754717 is about 36342.1892158411. The cubic root of 1320754717 is about 1097.1703351368.

The spelling of 1320754717 in words is "one billion, three hundred twenty million, seven hundred fifty-four thousand, seven hundred seventeen".