1271681032 has 16 divisors (see below), whose sum is σ = 2384860140. Its totient is φ = 635718336.

The previous prime is 1271681029. The next prime is 1271681087. The reversal of 1271681032 is 2301861721.

It can be written as a sum of positive squares in 2 ways, for example, as 1266363396 + 5317636 = 35586^2 + 2306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1271680985 and 1271681003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41278 + ... + 65170.

Almost surely, 2^1271681032 is an apocalyptic number.

It is an amenable number.

1271681032 is a deficient number, since it is larger than the sum of its proper divisors (1113179108).

1271681032 is a wasteful number, since it uses less digits than its factorization.

1271681032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30552 (or 30548 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1271681032 is about 35660.6370105751. The cubic root of 1271681032 is about 1083.4097288821.

The spelling of 1271681032 in words is "one billion, two hundred seventy-one million, six hundred eighty-one thousand, thirty-two".