2106169 has 8 divisors (see below), whose sum is σ = 2387840. Its totient is φ = 1841616.

The previous prime is 2106149. The next prime is 2106173. The reversal of 2106169 is 9616012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2106169 is a prime.

It is a super-2 number, since 2×2106169² = 8871895713122, which contains 22 as substring.

2106169 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2106149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4017 + ... + 4510.

It is an arithmetic number, because the mean of its divisors is an integer number (298480).

2^2106169 is an apocalyptic number.

It is an amenable number.

2106169 is a deficient number, since it is larger than the sum of its proper divisors (281671).

2106169 is a wasteful number, since it uses less digits than its factorization.

2106169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8559.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 2106169 is about 1451.2646209427. The cubic root of 2106169 is about 128.1831890359.

The spelling of 2106169 in words is "two million, one hundred six thousand, one hundred sixty-nine".