1147158732 has 24 divisors (see below), whose sum is σ = 2691662400. Its totient is φ = 380249296.

The previous prime is 1147158709. The next prime is 1147158737. The reversal of 1147158732 is 2378517411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1147158737) 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, 264882 + ... + 269177.

It is an arithmetic number, because the mean of its divisors is an integer number (112152600).

Almost surely, 2^1147158732 is an apocalyptic number.

1147158732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1147158732 is an abundant number, since it is smaller than the sum of its proper divisors (1544503668).

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

1147158732 is a wasteful number, since it uses less digits than its factorization.

1147158732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534245 (or 534243 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The square root of 1147158732 is about 33869.7317969895. The cubic root of 1147158732 is about 1046.8260106482.

The spelling of 1147158732 in words is "one billion, one hundred forty-seven million, one hundred fifty-eight thousand, seven hundred thirty-two".