1149572443 has 4 divisors (see below), whose sum is σ = 1154592640. Its totient is φ = 1144552248.

The previous prime is 1149572429. The next prime is 1149572471. The reversal of 1149572443 is 3442759411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1149572443 - 2⁹ = 1149571931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1149572396 and 1149572405.

It is not an unprimeable number, because it can be changed into a prime (1149572423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2509755 + ... + 2510212.

It is an arithmetic number, because the mean of its divisors is an integer number (288648160).

Almost surely, 2^1149572443 is an apocalyptic number.

1149572443 is a deficient number, since it is larger than the sum of its proper divisors (5020197).

1149572443 is an equidigital number, since it uses as much as digits as its factorization.

1149572443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020196.

The product of its digits is 120960, while the sum is 40.

The square root of 1149572443 is about 33905.3453455351. The cubic root of 1149572443 is about 1047.5596973665.

It can be divided in two parts, 11495 and 72443, that added together give a palindrome (83938).

The spelling of 1149572443 in words is "one billion, one hundred forty-nine million, five hundred seventy-two thousand, four hundred forty-three".