212132189 has 2 divisors, whose sum is σ = 212132190. Its totient is φ = 212132188.

The previous prime is 212132177. The next prime is 212132213. The reversal of 212132189 is 981231212.

212132189 is digitally balanced in base 2, because in such base 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., 203547289 + 8584900 = 14267^2 + 2930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212132189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212132119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106066094 + 106066095.

It is an arithmetic number, because the mean of its divisors is an integer number (106066095).

Almost surely, 2^212132189 is an apocalyptic number.

It is an amenable number.

212132189 is a deficient number, since it is larger than the sum of its proper divisors (1).

212132189 is an equidigital number, since it uses as much as digits as its factorization.

212132189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The square root of 212132189 is about 14564.7584600638. The cubic root of 212132189 is about 596.3971020333.

The spelling of 212132189 in words is "two hundred twelve million, one hundred thirty-two thousand, one hundred eighty-nine".