1271472722 has 8 divisors (see below), whose sum is σ = 2053917516. Its totient is φ = 586833552.

The previous prime is 1271472649. The next prime is 1271472731. The reversal of 1271472722 is 2272741721.

It can be written as a sum of positive squares in 2 ways, for example, as 1015760641 + 255712081 = 31871^2 + 15991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 24451373 + ... + 24451424.

Almost surely, 2^1271472722 is an apocalyptic number.

1271472722 is a deficient number, since it is larger than the sum of its proper divisors (782444794).

1271472722 is a wasteful number, since it uses less digits than its factorization.

1271472722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48902812.

The product of its digits is 21952, while the sum is 35.

The square root of 1271472722 is about 35657.7161635459. The cubic root of 1271472722 is about 1083.3505690249.

The spelling of 1271472722 in words is "one billion, two hundred seventy-one million, four hundred seventy-two thousand, seven hundred twenty-two".