2045654573 has 6 divisors (see below), whose sum is σ = 2052228906. Its totient is φ = 2039101232.

The previous prime is 2045654563. The next prime is 2045654593. The reversal of 2045654573 is 3754565402.

It can be written as a sum of positive squares in 3 ways, for example, as 25421764 + 2020232809 = 5042^2 + 44947^2 .

It is not a de Polignac number, because 2045654573 - 2⁶ = 2045654509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2045654573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045654543) 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, 90311 + ... + 110667.

It is an arithmetic number, because the mean of its divisors is an integer number (342038151).

Almost surely, 2^2045654573 is an apocalyptic number.

It is an amenable number.

2045654573 is a deficient number, since it is larger than the sum of its proper divisors (6574333).

2045654573 is an frugal number, since it uses more digits than its factorization.

2045654573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20991 (or 20674 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 41.

The square root of 2045654573 is about 45228.9130203236. The cubic root of 2045654573 is about 1269.4358734143.

The spelling of 2045654573 in words is "two billion, forty-five million, six hundred fifty-four thousand, five hundred seventy-three".