1147733321 has 6 divisors (see below), whose sum is σ = 1335118410. Its totient is φ = 983771376.

The previous prime is 1147733311. The next prime is 1147733329. The reversal of 1147733321 is 1233377411.

It can be written as a sum of positive squares in only one way, i.e., 1070925625 + 76807696 = 32725^2 + 8764^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1147733321 is a prime.

It is a super-2 number, since 2×1147733321² = 2634583552267378082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147733329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11711516 + ... + 11711613.

It is an arithmetic number, because the mean of its divisors is an integer number (222519735).

Almost surely, 2^1147733321 is an apocalyptic number.

It is an amenable number.

1147733321 is a deficient number, since it is larger than the sum of its proper divisors (187385089).

1147733321 is an equidigital number, since it uses as much as digits as its factorization.

1147733321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23423143 (or 23423136 counting only the distinct ones).

The product of its digits is 10584, while the sum is 32.

The square root of 1147733321 is about 33878.2130727109. The cubic root of 1147733321 is about 1047.0007595870. Note that the first 3 decimals are identical.

The spelling of 1147733321 in words is "one billion, one hundred forty-seven million, seven hundred thirty-three thousand, three hundred twenty-one".