1316753765 has 4 divisors (see below), whose sum is σ = 1580104524. Its totient is φ = 1053403008.

The previous prime is 1316753761. The next prime is 1316753771. The reversal of 1316753765 is 5673576131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5673576131 = 60889 ⋅93179.

It can be written as a sum of positive squares in 2 ways, for example, as 477029281 + 839724484 = 21841^2 + 28978^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316753765 - 2² = 1316753761 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316753761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131675372 + ... + 131675381.

It is an arithmetic number, because the mean of its divisors is an integer number (395026131).

Almost surely, 2^1316753765 is an apocalyptic number.

It is an amenable number.

1316753765 is a deficient number, since it is larger than the sum of its proper divisors (263350759).

1316753765 is an equidigital number, since it uses as much as digits as its factorization.

1316753765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263350758.

The product of its digits is 396900, while the sum is 44.

The square root of 1316753765 is about 36287.1019096317. The cubic root of 1316753765 is about 1096.0613313597.

The spelling of 1316753765 in words is "one billion, three hundred sixteen million, seven hundred fifty-three thousand, seven hundred sixty-five".