12100189 has 2 divisors, whose sum is σ = 12100190. Its totient is φ = 12100188.

The previous prime is 12100183. The next prime is 12100201. The reversal of 12100189 is 98100121.

12100189 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11168964 + 931225 = 3342^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100189 - 2³ = 12100181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050094 + 6050095.

It is an arithmetic number, because the mean of its divisors is an integer number (6050095).

Almost surely, 2^12100189 is an apocalyptic number.

It is an amenable number.

12100189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100189 is an equidigital number, since it uses as much as digits as its factorization.

12100189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 12100189 is about 3478.5325929190. The cubic root of 12100189 is about 229.5782377788.

The spelling of 12100189 in words is "twelve million, one hundred thousand, one hundred eighty-nine".