1140143 has 2 divisors, whose sum is σ = 1140144. Its totient is φ = 1140142.

The previous prime is 1140137. The next prime is 1140157. The reversal of 1140143 is 3410411.

It is a happy number.

It is an a-pointer prime, because the next prime (1140157) can be obtained adding 1140143 to its sum of digits (14).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1140143 - 2⁴ = 1140127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570071 + 570072.

It is an arithmetic number, because the mean of its divisors is an integer number (570072).

2^1140143 is an apocalyptic number.

1140143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140143 is an equidigital number, since it uses as much as digits as its factorization.

1140143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1140143 is about 1067.7747889888. The cubic root of 1140143 is about 104.4687604552.

Adding to 1140143 its reverse (3410411), we get a palindrome (4550554).

The spelling of 1140143 in words is "one million, one hundred forty thousand, one hundred forty-three".