1141054243 has 4 divisors (see below), whose sum is σ = 1304062000. Its totient is φ = 978046488.

The previous prime is 1141054241. The next prime is 1141054261. The reversal of 1141054243 is 3424501411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3424501411 = 1049 ⋅3264539.

It is a cyclic number.

It is not a de Polignac number, because 1141054243 - 2¹ = 1141054241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141054241) 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 3 ways as a sum of consecutive naturals, for example, 81503868 + ... + 81503881.

It is an arithmetic number, because the mean of its divisors is an integer number (326015500).

Almost surely, 2^1141054243 is an apocalyptic number.

1141054243 is a deficient number, since it is larger than the sum of its proper divisors (163007757).

1141054243 is an equidigital number, since it uses as much as digits as its factorization.

1141054243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163007756.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1141054243 is about 33779.4944159915. The cubic root of 1141054243 is about 1044.9658476511.

Adding to 1141054243 its reverse (3424501411), we get a palindrome (4565555654).

The spelling of 1141054243 in words is "one billion, one hundred forty-one million, fifty-four thousand, two hundred forty-three".