1271157682 has 16 divisors (see below), whose sum is σ = 1913877504. Its totient is φ = 633204000.

The previous prime is 1271157661. The next prime is 1271157683. The reversal of 1271157682 is 2867511721.

It is a super-2 number, since 2×1271157682² = 3231683705015226248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1271157683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032007 + ... + 1033237.

It is an arithmetic number, because the mean of its divisors is an integer number (119617344).

Almost surely, 2^1271157682 is an apocalyptic number.

1271157682 is a deficient number, since it is larger than the sum of its proper divisors (642719822).

1271157682 is a wasteful number, since it uses less digits than its factorization.

1271157682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745.

The product of its digits is 47040, while the sum is 40.

The square root of 1271157682 is about 35653.2983326929. The cubic root of 1271157682 is about 1083.2610856645.

The spelling of 1271157682 in words is "one billion, two hundred seventy-one million, one hundred fifty-seven thousand, six hundred eighty-two".