1275674555 has 4 divisors (see below), whose sum is σ = 1530809472. Its totient is φ = 1020539640.

The previous prime is 1275674513. The next prime is 1275674557. The reversal of 1275674555 is 5554765721.

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

It is not a de Polignac number, because 1275674555 - 2⁸ = 1275674299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275674557) 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, 127567451 + ... + 127567460.

It is an arithmetic number, because the mean of its divisors is an integer number (382702368).

Almost surely, 2^1275674555 is an apocalyptic number.

1275674555 is a deficient number, since it is larger than the sum of its proper divisors (255134917).

1275674555 is an equidigital number, since it uses as much as digits as its factorization.

1275674555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255134916.

The product of its digits is 1470000, while the sum is 47.

The square root of 1275674555 is about 35716.5865530288. The cubic root of 1275674555 is about 1084.5426388944.

The spelling of 1275674555 in words is "one billion, two hundred seventy-five million, six hundred seventy-four thousand, five hundred fifty-five".