1045345305 has 16 divisors (see below), whose sum is σ = 1674639360. Its totient is φ = 556821888.

The previous prime is 1045345297. The next prime is 1045345309. The reversal of 1045345305 is 5035435401.

It is not a de Polignac number, because 1045345305 - 2³ = 1045345297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1045345309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30937 + ... + 55206.

It is an arithmetic number, because the mean of its divisors is an integer number (104664960).

Almost surely, 2^1045345305 is an apocalyptic number.

1045345305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1045345305 is a deficient number, since it is larger than the sum of its proper divisors (629294055).

1045345305 is an equidigital number, since it uses as much as digits as its factorization.

1045345305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86960.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 1045345305 is about 32331.8002127936. The cubic root of 1045345305 is about 1014.8922224532.

The spelling of 1045345305 in words is "one billion, forty-five million, three hundred forty-five thousand, three hundred five".