1140268143 has 16 divisors (see below), whose sum is σ = 1738699776. Its totient is φ = 651151200.

The previous prime is 1140268121. The next prime is 1140268159. The reversal of 1140268143 is 3418620411.

It is not a de Polignac number, because 1140268143 - 2²⁰ = 1139219567 is a prime.

It is a super-2 number, since 2×1140268143² = 2600422875881336898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1140268143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140268643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16093 + ... + 50393.

It is an arithmetic number, because the mean of its divisors is an integer number (108668736).

Almost surely, 2^1140268143 is an apocalyptic number.

1140268143 is a deficient number, since it is larger than the sum of its proper divisors (598431633).

1140268143 is a wasteful number, since it uses less digits than its factorization.

1140268143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35894.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1140268143 is about 33767.8566539246. The cubic root of 1140268143 is about 1044.7258250671.

Adding to 1140268143 its reverse (3418620411), we get a palindrome (4558888554).

It can be divided in two parts, 1140268 and 143, that added together give a palindrome (1140411).

The spelling of 1140268143 in words is "one billion, one hundred forty million, two hundred sixty-eight thousand, one hundred forty-three".