115645769 has 2 divisors, whose sum is σ = 115645770. Its totient is φ = 115645768.

The previous prime is 115645763. The next prime is 115645811. The reversal of 115645769 is 967546511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100240144 + 15405625 = 10012^2 + 3925^2 .

It is an emirp because it is prime and its reverse (967546511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115645769 is a prime.

It is a super-3 number, since 3×115645769³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (115645763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57822884 + 57822885.

It is an arithmetic number, because the mean of its divisors is an integer number (57822885).

Almost surely, 2^115645769 is an apocalyptic number.

It is an amenable number.

115645769 is a deficient number, since it is larger than the sum of its proper divisors (1).

115645769 is an equidigital number, since it uses as much as digits as its factorization.

115645769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The square root of 115645769 is about 10753.8722793234. The cubic root of 115645769 is about 487.2029576805.

The spelling of 115645769 in words is "one hundred fifteen million, six hundred forty-five thousand, seven hundred sixty-nine".