1129271922 has 32 divisors (see below), whose sum is σ = 2526130560. Its totient is φ = 373928400.

The previous prime is 1129271911. The next prime is 1129271929. The reversal of 1129271922 is 2291729211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1129271929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61093 + ... + 77400.

It is an arithmetic number, because the mean of its divisors is an integer number (78941580).

Almost surely, 2^1129271922 is an apocalyptic number.

1129271922 is an abundant number, since it is smaller than the sum of its proper divisors (1396858638).

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

1129271922 is a wasteful number, since it uses less digits than its factorization.

1129271922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138655 (or 138649 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 1129271922 is about 33604.6413758576. The cubic root of 1129271922 is about 1041.3566866479.

The spelling of 1129271922 in words is "one billion, one hundred twenty-nine million, two hundred seventy-one thousand, nine hundred twenty-two".