1147001472 has 80 divisors (see below), whose sum is σ = 3413488650. Its totient is φ = 382330368.

The previous prime is 1147001459. The next prime is 1147001507. The reversal of 1147001472 is 2741007411.

It can be written as a sum of positive squares in only one way, i.e., 1111288896 + 35712576 = 33336^2 + 5976^2 .

It is a super-2 number, since 2×1147001472² = 2631224753540333568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 9 ways as a sum of consecutive naturals, for example, 44947 + ... + 65682.

Almost surely, 2^1147001472 is an apocalyptic number.

1147001472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1147001472 is an abundant number, since it is smaller than the sum of its proper divisors (2266487178).

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

1147001472 is an equidigital number, since it uses as much as digits as its factorization.

1147001472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110655 (or 110634 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 1147001472 is about 33867.4101755655. The cubic root of 1147001472 is about 1046.7781732168.

Adding to 1147001472 its reverse (2741007411), we get a palindrome (3888008883).

The spelling of 1147001472 in words is "one billion, one hundred forty-seven million, one thousand, four hundred seventy-two".