1050505243 has 4 divisors (see below), whose sum is σ = 1096179408. Its totient is φ = 1004831080.

The previous prime is 1050505229. The next prime is 1050505283. The reversal of 1050505243 is 3425050501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1050505243 is a prime.

It is a super-2 number, since 2×1050505243² = 2207122531140978098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1050505223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22837048 + ... + 22837093.

It is an arithmetic number, because the mean of its divisors is an integer number (274044852).

Almost surely, 2^1050505243 is an apocalyptic number.

1050505243 is a deficient number, since it is larger than the sum of its proper divisors (45674165).

1050505243 is an equidigital number, since it uses as much as digits as its factorization.

1050505243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45674164.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1050505243 is about 32411.4986231738. The cubic root of 1050505243 is about 1016.5593551639.

Adding to 1050505243 its reverse (3425050501), we get a palindrome (4475555744).

The spelling of 1050505243 in words is "one billion, fifty million, five hundred five thousand, two hundred forty-three".