2100166 has 4 divisors (see below), whose sum is σ = 3150252. Its totient is φ = 1050082.

The previous prime is 2100121. The next prime is 2100167. The reversal of 2100166 is 6610012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525040 + ... + 525043.

It is an arithmetic number, because the mean of its divisors is an integer number (787563).

2^2100166 is an apocalyptic number.

2100166 is a deficient number, since it is larger than the sum of its proper divisors (1050086).

2100166 is a wasteful number, since it uses less digits than its factorization.

2100166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050085.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2100166 is about 1449.1949489285. The cubic root of 2100166 is about 128.0612906343.

Adding to 2100166 its reverse (6610012), we get a palindrome (8710178).

The spelling of 2100166 in words is "two million, one hundred thousand, one hundred sixty-six".