1271218282 has 16 divisors (see below), whose sum is σ = 2024637120. Its totient is φ = 596548288.

The previous prime is 1271218253. The next prime is 1271218301. The reversal of 1271218282 is 2828121721.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 39868 + ... + 64279.

It is an arithmetic number, because the mean of its divisors is an integer number (126539820).

Almost surely, 2^1271218282 is an apocalyptic number.

1271218282 is a deficient number, since it is larger than the sum of its proper divisors (753418838).

1271218282 is a wasteful number, since it uses less digits than its factorization.

1271218282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104525.

The product of its digits is 7168, while the sum is 34.

The square root of 1271218282 is about 35654.1481738100. The cubic root of 1271218282 is about 1083.2782995212.

The spelling of 1271218282 in words is "one billion, two hundred seventy-one million, two hundred eighteen thousand, two hundred eighty-two".