1275705853 has 4 divisors (see below), whose sum is σ = 1319695740. Its totient is φ = 1231715968.

The previous prime is 1275705841. The next prime is 1275705859. The reversal of 1275705853 is 3585075721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3585075721 = 6101 ⋅587621.

It can be written as a sum of positive squares in 2 ways, for example, as 670447449 + 605258404 = 25893^2 + 24602^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275705853 - 2⁹ = 1275705341 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 (1275705859) 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 in 3 ways as a sum of consecutive naturals, for example, 21994900 + ... + 21994957.

It is an arithmetic number, because the mean of its divisors is an integer number (329923935).

Almost surely, 2^1275705853 is an apocalyptic number.

It is an amenable number.

1275705853 is a deficient number, since it is larger than the sum of its proper divisors (43989887).

1275705853 is an equidigital number, since it uses as much as digits as its factorization.

1275705853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43989886.

The product of its (nonzero) digits is 294000, while the sum is 43.

The square root of 1275705853 is about 35717.0246941147. The cubic root of 1275705853 is about 1084.5515083817.

The spelling of 1275705853 in words is "one billion, two hundred seventy-five million, seven hundred five thousand, eight hundred fifty-three".