2112169 has 2 divisors, whose sum is σ = 2112170. Its totient is φ = 2112168.

The previous prime is 2112161. The next prime is 2112191. The reversal of 2112169 is 9612112.

It is an a-pointer prime, because the next prime (2112191) can be obtained adding 2112169 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1996569 + 115600 = 1413^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112169 - 2³ = 2112161 is a prime.

It is a super-2 number, since 2×2112169² = 8922515769122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056084 + 1056085.

It is an arithmetic number, because the mean of its divisors is an integer number (1056085).

2^2112169 is an apocalyptic number.

It is an amenable number.

2112169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112169 is an equidigital number, since it uses as much as digits as its factorization.

2112169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 22.

The square root of 2112169 is about 1453.3303134525. The cubic root of 2112169 is about 128.3047952885.

The spelling of 2112169 in words is "two million, one hundred twelve thousand, one hundred sixty-nine".