2104236513 has 12 divisors (see below), whose sum is σ = 3041902500. Its totient is φ = 1401693696.

The previous prime is 2104236499. The next prime is 2104236517. The reversal of 2104236513 is 3156324012.

2104236513 is a `hidden beast` number, since 2 + 1 + 0 + 4 + 2 + 3 + 651 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 922458384 + 1181778129 = 30372^2 + 34377^2 .

It is not a de Polignac number, because 2104236513 - 2⁸ = 2104236257 is a prime.

It is a super-2 number, since 2×2104236513² = 8855622605284798338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2104236517) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 82356 + ... + 104837.

It is an arithmetic number, because the mean of its divisors is an integer number (253491875).

Almost surely, 2^2104236513 is an apocalyptic number.

It is an amenable number.

2104236513 is a deficient number, since it is larger than the sum of its proper divisors (937665987).

2104236513 is a wasteful number, since it uses less digits than its factorization.

2104236513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188448 (or 188445 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2104236513 is about 45871.9578064857. The cubic root of 2104236513 is about 1281.4397278648.

The spelling of 2104236513 in words is "two billion, one hundred four million, two hundred thirty-six thousand, five hundred thirteen".