1140042243 has 16 divisors (see below), whose sum is σ = 1570565376. Its totient is φ = 735178080.

The previous prime is 1140042223. The next prime is 1140042257. The reversal of 1140042243 is 3422400411.

It is not a de Polignac number, because 1140042243 - 2⁶ = 1140042179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140042223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39205 + ... + 61782.

It is an arithmetic number, because the mean of its divisors is an integer number (98160336).

Almost surely, 2^1140042243 is an apocalyptic number.

1140042243 is a deficient number, since it is larger than the sum of its proper divisors (430523133).

1140042243 is a wasteful number, since it uses less digits than its factorization.

1140042243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101114.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1140042243 is about 33764.5115913143. The cubic root of 1140042243 is about 1044.6568298481.

Adding to 1140042243 its reverse (3422400411), we get a palindrome (4562442654).

The spelling of 1140042243 in words is "one billion, one hundred forty million, forty-two thousand, two hundred forty-three".