1145444143 has 2 divisors, whose sum is σ = 1145444144. Its totient is φ = 1145444142.

The previous prime is 1145444129. The next prime is 1145444159. The reversal of 1145444143 is 3414445411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145444143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145444243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572722071 + 572722072.

It is an arithmetic number, because the mean of its divisors is an integer number (572722072).

Almost surely, 2^1145444143 is an apocalyptic number.

1145444143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145444143 is an equidigital number, since it uses as much as digits as its factorization.

1145444143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 31.

The square root of 1145444143 is about 33844.4108088766. The cubic root of 1145444143 is about 1046.3042080162.

Adding to 1145444143 its reverse (3414445411), we get a palindrome (4559889554).

The spelling of 1145444143 in words is "one billion, one hundred forty-five million, four hundred forty-four thousand, one hundred forty-three".