1275080605 has 4 divisors (see below), whose sum is σ = 1530096732. Its totient is φ = 1020064480.

The previous prime is 1275080603. The next prime is 1275080629. The reversal of 1275080605 is 5060805721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 392158809 + 882921796 = 19803^2 + 29714^2 .

It is not a de Polignac number, because 1275080605 - 2¹ = 1275080603 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 (1275080603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127508056 + ... + 127508065.

It is an arithmetic number, because the mean of its divisors is an integer number (382524183).

Almost surely, 2^1275080605 is an apocalyptic number.

It is an amenable number.

1275080605 is a deficient number, since it is larger than the sum of its proper divisors (255016127).

1275080605 is an equidigital number, since it uses as much as digits as its factorization.

1275080605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255016126.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 1275080605 is about 35708.2708206376. The cubic root of 1275080605 is about 1084.3742929012.

The spelling of 1275080605 in words is "one billion, two hundred seventy-five million, eighty thousand, six hundred five".