2045020045 has 16 divisors (see below), whose sum is σ = 2570279040. Its totient is φ = 1559043904.

The previous prime is 2045020037. The next prime is 2045020067. The reversal of 2045020045 is 5400205402.

It is a cyclic number.

It is not a de Polignac number, because 2045020045 - 2³ = 2045020037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2045019998 and 2045020025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2119 + ... + 63988.

It is an arithmetic number, because the mean of its divisors is an integer number (160642440).

Almost surely, 2^2045020045 is an apocalyptic number.

It is an amenable number.

2045020045 is a deficient number, since it is larger than the sum of its proper divisors (525258995).

2045020045 is a wasteful number, since it uses less digits than its factorization.

2045020045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66404.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2045020045 is about 45221.8978482770. The cubic root of 2045020045 is about 1269.3046072148.

Adding to 2045020045 its reverse (5400205402), we get a palindrome (7445225447).

The spelling of 2045020045 in words is "two billion, forty-five million, twenty thousand, forty-five".