12000000169 has 2 divisors, whose sum is σ = 12000000170. Its totient is φ = 12000000168.

The previous prime is 12000000143. The next prime is 12000000293. The reversal of 12000000169 is 96100000021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6555331225 + 5444668944 = 80965^2 + 73788^2 .

It is an emirp because it is prime and its reverse (96100000021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12000000169 - 2¹⁵ = 11999967401 is a prime.

It is a super-2 number, since 2×12000000169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12000000139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000000084 + 6000000085.

It is an arithmetic number, because the mean of its divisors is an integer number (6000000085).

Almost surely, 2^12000000169 is an apocalyptic number.

It is an amenable number.

12000000169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000000169 is an equidigital number, since it uses as much as digits as its factorization.

12000000169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 12000000169 in words is "twelve billion, one hundred sixty-nine", and thus it is an aban number.