1143385141 has 2 divisors, whose sum is σ = 1143385142. Its totient is φ = 1143385140.

The previous prime is 1143385129. The next prime is 1143385171. The reversal of 1143385141 is 1415833411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1125870916 + 17514225 = 33554^2 + 4185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143385141 - 2⁵ = 1143385109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143385171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571692570 + 571692571.

It is an arithmetic number, because the mean of its divisors is an integer number (571692571).

Almost surely, 2^1143385141 is an apocalyptic number.

It is an amenable number.

1143385141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143385141 is an equidigital number, since it uses as much as digits as its factorization.

1143385141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 31.

The square root of 1143385141 is about 33813.9784852360. The cubic root of 1143385141 is about 1045.6769012454.

The spelling of 1143385141 in words is "one billion, one hundred forty-three million, three hundred eighty-five thousand, one hundred forty-one".