1271632506 has 32 divisors (see below), whose sum is σ = 2578867200. Its totient is φ = 417958320.

The previous prime is 1271632499. The next prime is 1271632519. The reversal of 1271632506 is 6052361721.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 515905 + ... + 518363.

It is an arithmetic number, because the mean of its divisors is an integer number (80589600).

Almost surely, 2^1271632506 is an apocalyptic number.

1271632506 is an abundant number, since it is smaller than the sum of its proper divisors (1307234694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271632506 is a wasteful number, since it uses less digits than its factorization.

1271632506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1271632506 is about 35659.9566180331. The cubic root of 1271632506 is about 1083.3959481179.

The spelling of 1271632506 in words is "one billion, two hundred seventy-one million, six hundred thirty-two thousand, five hundred six".