2104013565 has 12 divisors (see below), whose sum is σ = 3646956924. Its totient is φ = 1122140544.

The previous prime is 2104013543. The next prime is 2104013579. The reversal of 2104013565 is 5653104012.

It can be written as a sum of positive squares in 2 ways, for example, as 1173336516 + 930677049 = 34254^2 + 30507^2 .

It is not a de Polignac number, because 2104013565 - 2⁶ = 2104013501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23377884 + ... + 23377973.

It is an arithmetic number, because the mean of its divisors is an integer number (303913077).

Almost surely, 2^2104013565 is an apocalyptic number.

It is an amenable number.

2104013565 is a deficient number, since it is larger than the sum of its proper divisors (1542943359).

2104013565 is a wasteful number, since it uses less digits than its factorization.

2104013565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46755868 (or 46755865 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2104013565 is about 45869.5276300073. The cubic root of 2104013565 is about 1281.3944692459.

Adding to 2104013565 its reverse (5653104012), we get a palindrome (7757117577).

The spelling of 2104013565 in words is "two billion, one hundred four million, thirteen thousand, five hundred sixty-five".