1145045143 has 12 divisors (see below), whose sum is σ = 1260883624. Its totient is φ = 1039064400.

The previous prime is 1145045141. The next prime is 1145045147. The reversal of 1145045143 is 3415405411.

It is not a de Polignac number, because 1145045143 - 2¹ = 1145045141 is a prime.

It is a super-2 number, since 2×1145045143² = 2622256759015780898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145045141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60805 + ... + 77377.

Almost surely, 2^1145045143 is an apocalyptic number.

1145045143 is a deficient number, since it is larger than the sum of its proper divisors (115838481).

1145045143 is a wasteful number, since it uses less digits than its factorization.

1145045143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17166 (or 17155 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1145045143 is about 33838.5156737112. The cubic root of 1145045143 is about 1046.1827052597.

The spelling of 1145045143 in words is "one billion, one hundred forty-five million, forty-five thousand, one hundred forty-three".