1348385785 has 16 divisors (see below), whose sum is σ = 1647282960. Its totient is φ = 1059287040.

The previous prime is 1348385777. The next prime is 1348385791. The reversal of 1348385785 is 5875838431.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 69822736 + 1278563049 = 8356^2 + 35757^2 .

It is not a de Polignac number, because 1348385785 - 2³ = 1348385777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201981 + ... + 208549.

It is an arithmetic number, because the mean of its divisors is an integer number (102955185).

Almost surely, 2^1348385785 is an apocalyptic number.

It is an amenable number.

1348385785 is a deficient number, since it is larger than the sum of its proper divisors (298897175).

1348385785 is an equidigital number, since it uses as much as digits as its factorization.

1348385785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308.

The product of its digits is 3225600, while the sum is 52.

The square root of 1348385785 is about 36720.3728875402. The cubic root of 1348385785 is about 1104.7687687984.

The spelling of 1348385785 in words is "one billion, three hundred forty-eight million, three hundred eighty-five thousand, seven hundred eighty-five".