2166104 has 8 divisors (see below), whose sum is σ = 4061460. Its totient is φ = 1083048.

The previous prime is 2166077. The next prime is 2166113. The reversal of 2166104 is 4016612.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135374 + ... + 135389.

2^2166104 is an apocalyptic number.

It is an amenable number.

2166104 is a deficient number, since it is larger than the sum of its proper divisors (1895356).

2166104 is a wasteful number, since it uses less digits than its factorization.

2166104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270769 (or 270765 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2166104 is about 1471.7690036144. The cubic root of 2166104 is about 129.3877323385.

The spelling of 2166104 in words is "two million, one hundred sixty-six thousand, one hundred four".