2099564041 has 3 divisors (see below), whose sum is σ = 2099609863. Its totient is φ = 2099518220.

The previous prime is 2099563987. The next prime is 2099564081. The reversal of 2099564041 is 1404659902.

The square root of 2099564041 is 45821.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2094984441 + 4579600 = 45771^2 + 2140^2 .

It is not a de Polignac number, because 2099564041 - 2²⁹ = 1562693129 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2099563985 and 2099564003.

It is not an unprimeable number, because it can be changed into a prime (2099564081) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 22911 + ... + 68731.

Almost surely, 2^2099564041 is an apocalyptic number.

2099564041 is the 45821-st square number.

2099564041 is the 22911-st centered octagonal number.

It is an amenable number.

2099564041 is a deficient number, since it is larger than the sum of its proper divisors (45822).

2099564041 is an frugal number, since it uses more digits than its factorization.

2099564041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91642 (or 45821 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The cubic root of 2099564041 is about 1280.4905429796.

The spelling of 2099564041 in words is "two billion, ninety-nine million, five hundred sixty-four thousand, forty-one".