2104261065 has 16 divisors (see below), whose sum is σ = 3740908800. Its totient is φ = 1122272496.

The previous prime is 2104261043. The next prime is 2104261073. The reversal of 2104261065 is 5601624012.

2104261065 is a `hidden beast` number, since 2 + 1 + 0 + 42 + 610 + 6 + 5 = 666.

It is not a de Polignac number, because 2104261065 - 2⁷ = 2104260937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7793425 + ... + 7793694.

It is an arithmetic number, because the mean of its divisors is an integer number (233806800).

Almost surely, 2^2104261065 is an apocalyptic number.

It is an amenable number.

2104261065 is a deficient number, since it is larger than the sum of its proper divisors (1636647735).

2104261065 is a wasteful number, since it uses less digits than its factorization.

2104261065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15587133 (or 15587127 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2104261065 is about 45872.2254201821. The cubic root of 2104261065 is about 1281.4447117446. Note that the first 3 decimals are identical.

Adding to 2104261065 its reverse (5601624012), we get a palindrome (7705885077).

It can be divided in two parts, 2104 and 261065, that added together give a square (263169 = 513²).

The spelling of 2104261065 in words is "two billion, one hundred four million, two hundred sixty-one thousand, sixty-five".