1152261443 has 4 divisors (see below), whose sum is σ = 1153072608. Its totient is φ = 1151450280.

The previous prime is 1152261431. The next prime is 1152261449. The reversal of 1152261443 is 3441622511.

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 1152261443 - 2¹² = 1152257347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152261449) 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, 403448 + ... + 406293.

It is an arithmetic number, because the mean of its divisors is an integer number (288268152).

Almost surely, 2^1152261443 is an apocalyptic number.

1152261443 is a deficient number, since it is larger than the sum of its proper divisors (811165).

1152261443 is an equidigital number, since it uses as much as digits as its factorization.

1152261443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811164.

The product of its digits is 5760, while the sum is 29.

The square root of 1152261443 is about 33944.9766975911. The cubic root of 1152261443 is about 1048.3758542884.

Adding to 1152261443 its reverse (3441622511), we get a palindrome (4593883954).

The spelling of 1152261443 in words is "one billion, one hundred fifty-two million, two hundred sixty-one thousand, four hundred forty-three".