1147332443 has 4 divisors (see below), whose sum is σ = 1147413168. Its totient is φ = 1147251720.

The previous prime is 1147332409. The next prime is 1147332451. The reversal of 1147332443 is 3442337411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3442337411 = 73 ⋅47155307.

It is a cyclic number.

It is not a de Polignac number, because 1147332443 - 2⁶ = 1147332379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147332743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12743 + ... + 49568.

It is an arithmetic number, because the mean of its divisors is an integer number (286853292).

Almost surely, 2^1147332443 is an apocalyptic number.

1147332443 is a deficient number, since it is larger than the sum of its proper divisors (80725).

1147332443 is an equidigital number, since it uses as much as digits as its factorization.

1147332443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80724.

The product of its digits is 24192, while the sum is 32.

The square root of 1147332443 is about 33872.2960987294. The cubic root of 1147332443 is about 1046.8788472813.

Adding to 1147332443 its reverse (3442337411), we get a palindrome (4589669854).

The spelling of 1147332443 in words is "one billion, one hundred forty-seven million, three hundred thirty-two thousand, four hundred forty-three".