1045205105 has 24 divisors (see below), whose sum is σ = 1512856512. Its totient is φ = 678982176.

The previous prime is 1045205089. The next prime is 1045205107. The reversal of 1045205105 is 5015025401.

It is a happy number.

It is not a de Polignac number, because 1045205105 - 2⁴ = 1045205089 is a prime.

It is a super-2 number, since 2×1045205105² = 2184907423036122050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045205107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28727 + ... + 53996.

It is an arithmetic number, because the mean of its divisors is an integer number (63035688).

Almost surely, 2^1045205105 is an apocalyptic number.

It is an amenable number.

1045205105 is a deficient number, since it is larger than the sum of its proper divisors (467651407).

1045205105 is an equidigital number, since it uses as much as digits as its factorization.

1045205105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82773 (or 82754 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1045205105 is about 32329.6319960497. The cubic root of 1045205105 is about 1014.8468485305.

The spelling of 1045205105 in words is "one billion, forty-five million, two hundred five thousand, one hundred five".