4512112169 has 2 divisors, whose sum is σ = 4512112170. Its totient is φ = 4512112168.

The previous prime is 4512112139. The next prime is 4512112177. The reversal of 4512112169 is 9612112154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4423846144 + 88266025 = 66512^2 + 9395^2 .

It is a cyclic number.

It is not a de Polignac number, because 4512112169 - 2⁸ = 4512111913 is a prime.

It is a super-2 number, since 2×4512112169² = 40718312451275769122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4512112109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2256056084 + 2256056085.

It is an arithmetic number, because the mean of its divisors is an integer number (2256056085).

Almost surely, 2^4512112169 is an apocalyptic number.

It is an amenable number.

4512112169 is a deficient number, since it is larger than the sum of its proper divisors (1).

4512112169 is an equidigital number, since it uses as much as digits as its factorization.

4512112169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 4512112169 is about 67172.2574356408. The cubic root of 4512112169 is about 1652.4435382379.

The spelling of 4512112169 in words is "four billion, five hundred twelve million, one hundred twelve thousand, one hundred sixty-nine".