1045351643 has 6 divisors (see below), whose sum is σ = 1216021356. Its totient is φ = 896015652.

The previous prime is 1045351627. The next prime is 1045351649. The reversal of 1045351643 is 3461535401.

It is not a de Polignac number, because 1045351643 - 2⁴ = 1045351627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045351649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10666805 + ... + 10666902.

It is an arithmetic number, because the mean of its divisors is an integer number (202670226).

Almost surely, 2^1045351643 is an apocalyptic number.

1045351643 is a deficient number, since it is larger than the sum of its proper divisors (170669713).

1045351643 is an equidigital number, since it uses as much as digits as its factorization.

1045351643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21333721 (or 21333714 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1045351643 is about 32331.8982276018. The cubic root of 1045351643 is about 1014.8942735693.

The spelling of 1045351643 in words is "one billion, forty-five million, three hundred fifty-one thousand, six hundred forty-three".