2005604113 has 2 divisors, whose sum is σ = 2005604114. Its totient is φ = 2005604112.

The previous prime is 2005604101. The next prime is 2005604123. The reversal of 2005604113 is 3114065002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1949399104 + 56205009 = 44152^2 + 7497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2005604113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2005604123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002802056 + 1002802057.

It is an arithmetic number, because the mean of its divisors is an integer number (1002802057).

Almost surely, 2^2005604113 is an apocalyptic number.

It is an amenable number.

2005604113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005604113 is an equidigital number, since it uses as much as digits as its factorization.

2005604113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2005604113 is about 44783.9716081546. The cubic root of 2005604113 is about 1261.0967424478.

Adding to 2005604113 its reverse (3114065002), we get a palindrome (5119669115).

The spelling of 2005604113 in words is "two billion, five million, six hundred four thousand, one hundred thirteen".