1140220043 has 4 divisors (see below), whose sum is σ = 1146008160. Its totient is φ = 1134431928.

The previous prime is 1140219989. The next prime is 1140220063. The reversal of 1140220043 is 3400220411.

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 1140220043 - 2²² = 1136025739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140220063) 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, 2893763 + ... + 2894156.

It is an arithmetic number, because the mean of its divisors is an integer number (286502040).

Almost surely, 2^1140220043 is an apocalyptic number.

1140220043 is a deficient number, since it is larger than the sum of its proper divisors (5788117).

1140220043 is an equidigital number, since it uses as much as digits as its factorization.

1140220043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5788116.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1140220043 is about 33767.1444306444. The cubic root of 1140220043 is about 1044.7111349497.

Adding to 1140220043 its reverse (3400220411), we get a palindrome (4540440454).

The spelling of 1140220043 in words is "one billion, one hundred forty million, two hundred twenty thousand, forty-three".