1327255785 has 12 divisors (see below), whose sum is σ = 2300576772. Its totient is φ = 707869728.

The previous prime is 1327255781. The next prime is 1327255819. The reversal of 1327255785 is 5875527231.

1327255785 is a `hidden beast` number, since 1 + 3 + 2 + 72 + 5 + 578 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 164172969 + 1163082816 = 12813^2 + 34104^2 .

It is not a de Polignac number, because 1327255785 - 2² = 1327255781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 29494573 = 1327255785 / (1 + 3 + 2 + 7 + 2 + 5 + 5 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1327255785.

It is not an unprimeable number, because it can be changed into a prime (1327255781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14747242 + ... + 14747331.

It is an arithmetic number, because the mean of its divisors is an integer number (191714731).

Almost surely, 2^1327255785 is an apocalyptic number.

1327255785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1327255785 is a deficient number, since it is larger than the sum of its proper divisors (973320987).

1327255785 is a wasteful number, since it uses less digits than its factorization.

1327255785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29494584 (or 29494581 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 1327255785 is about 36431.5218595106. The cubic root of 1327255785 is about 1098.9675670998.

The spelling of 1327255785 in words is "one billion, three hundred twenty-seven million, two hundred fifty-five thousand, seven hundred eighty-five".