2165104 has 10 divisors (see below), whose sum is σ = 4194920. Its totient is φ = 1082544.

The previous prime is 2165089. The next prime is 2165117. The reversal of 2165104 is 4015612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67644 + ... + 67675.

It is an arithmetic number, because the mean of its divisors is an integer number (419492).

2^2165104 is an apocalyptic number.

It is an amenable number.

2165104 is a deficient number, since it is larger than the sum of its proper divisors (2029816).

2165104 is a wasteful number, since it uses less digits than its factorization.

2165104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135327 (or 135321 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2165104 is about 1471.4292371704. The cubic root of 2165104 is about 129.3678182980.

The spelling of 2165104 in words is "two million, one hundred sixty-five thousand, one hundred four".