1147582272 has 56 divisors (see below), whose sum is σ = 3044952000. Its totient is φ = 381438976.

The previous prime is 1147582253. The next prime is 1147582283. The reversal of 1147582272 is 2722857411.

It is a self number, because there is not a number n which added to its sum of digits gives 1147582272.

It is a congruent number.

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, 60604 + ... + 77252.

Almost surely, 2^1147582272 is an apocalyptic number.

1147582272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1147582272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1522476000).

1147582272 is an abundant number, since it is smaller than the sum of its proper divisors (1897369728).

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

1147582272 is a wasteful number, since it uses less digits than its factorization.

1147582272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17023 (or 17013 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 1147582272 is about 33875.9837052742. The cubic root of 1147582272 is about 1046.9548269203.

The spelling of 1147582272 in words is "one billion, one hundred forty-seven million, five hundred eighty-two thousand, two hundred seventy-two".