1255139675 has 6 divisors (see below), whose sum is σ = 1556373228. Its totient is φ = 1004111720.

The previous prime is 1255139659. The next prime is 1255139681. The reversal of 1255139675 is 5769315521.

It is not a de Polignac number, because 1255139675 - 2⁴ = 1255139659 is a prime.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 25102769 + ... + 25102818.

It is an arithmetic number, because the mean of its divisors is an integer number (259395538).

Almost surely, 2^1255139675 is an apocalyptic number.

1255139675 is a deficient number, since it is larger than the sum of its proper divisors (301233553).

1255139675 is an equidigital number, since it uses as much as digits as its factorization.

1255139675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50205597 (or 50205592 counting only the distinct ones).

The product of its digits is 283500, while the sum is 44.

The square root of 1255139675 is about 35427.9504769892. The cubic root of 1255139675 is about 1078.6917386329.

The spelling of 1255139675 in words is "one billion, two hundred fifty-five million, one hundred thirty-nine thousand, six hundred seventy-five".