1045005543 has 20 divisors (see below), whose sum is σ = 1563019920. Its totient is φ = 695794752.

The previous prime is 1045005527. The next prime is 1045005553. The reversal of 1045005543 is 3455005401.

1045005543 is a `hidden beast` number, since 104 + 5 + 0 + 0 + 554 + 3 = 666.

It is not a de Polignac number, because 1045005543 - 2⁴ = 1045005527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045005523) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60271 + ... + 75647.

It is an arithmetic number, because the mean of its divisors is an integer number (78150996).

Almost surely, 2^1045005543 is an apocalyptic number.

1045005543 is a deficient number, since it is larger than the sum of its proper divisors (518014377).

1045005543 is an equidigital number, since it uses as much as digits as its factorization.

1045005543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16228 (or 16219 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1045005543 is about 32326.5454850963. The cubic root of 1045005543 is about 1014.7822558630.

The spelling of 1045005543 in words is "one billion, forty-five million, five thousand, five hundred forty-three".