122000189 has 2 divisors, whose sum is σ = 122000190. Its totient is φ = 122000188.

The previous prime is 122000173. The next prime is 122000191. The reversal of 122000189 is 981000221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89624089 + 32376100 = 9467^2 + 5690^2 .

It is a cyclic number.

It is not a de Polignac number, because 122000189 - 2⁴ = 122000173 is a prime.

It is a super-2 number, since 2×122000189² = 29768092232071442, which contains 22 as substring.

Together with 122000191, it forms a pair of twin primes.

It is a Chen prime.

122000189 is a modest number, since divided by 189 gives 122 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122000149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000094 + 61000095.

It is an arithmetic number, because the mean of its divisors is an integer number (61000095).

Almost surely, 2^122000189 is an apocalyptic number.

It is an amenable number.

122000189 is a deficient number, since it is larger than the sum of its proper divisors (1).

122000189 is an equidigital number, since it uses as much as digits as its factorization.

122000189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 122000189 is about 11045.3695728119. The cubic root of 122000189 is about 495.9678224985.

The spelling of 122000189 in words is "one hundred twenty-two million, one hundred eighty-nine", and thus it is an aban number.