1140400143 has 6 divisors (see below), whose sum is σ = 1647244664. Its totient is φ = 760266756.

The previous prime is 1140400139. The next prime is 1140400189. The reversal of 1140400143 is 3410040411.

It is not a de Polignac number, because 1140400143 - 2² = 1140400139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140400123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63355555 + ... + 63355572.

Almost surely, 2^1140400143 is an apocalyptic number.

1140400143 is a deficient number, since it is larger than the sum of its proper divisors (506844521).

1140400143 is a wasteful number, since it uses less digits than its factorization.

1140400143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126711133 (or 126711130 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1140400143 is about 33769.8111188085. The cubic root of 1140400143 is about 1044.7661367806.

Adding to 1140400143 its reverse (3410040411), we get a palindrome (4550440554).

The spelling of 1140400143 in words is "one billion, one hundred forty million, four hundred thousand, one hundred forty-three".