1275738285 has 8 divisors (see below), whose sum is σ = 2041181280. Its totient is φ = 680393744.

The previous prime is 1275738239. The next prime is 1275738301. The reversal of 1275738285 is 5828375721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1275738285 - 2⁶ = 1275738221 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42524595 + ... + 42524624.

It is an arithmetic number, because the mean of its divisors is an integer number (255147660).

Almost surely, 2^1275738285 is an apocalyptic number.

1275738285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275738285 is a deficient number, since it is larger than the sum of its proper divisors (765442995).

1275738285 is an equidigital number, since it uses as much as digits as its factorization.

1275738285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85049227.

The product of its digits is 940800, while the sum is 48.

The square root of 1275738285 is about 35717.4787044103. The cubic root of 1275738285 is about 1084.5606990784.

The spelling of 1275738285 in words is "one billion, two hundred seventy-five million, seven hundred thirty-eight thousand, two hundred eighty-five".