189122 has 4 divisors (see below), whose sum is σ = 283686. Its totient is φ = 94560.

The previous prime is 189067. The next prime is 189127. The reversal of 189122 is 221981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221981 = 47 ⋅4723.

It can be written as a sum of positive squares in only one way, i.e., 177241 + 11881 = 421^2 + 109^2 .

It is not an unprimeable number, because it can be changed into a prime (189127) by changing a digit.

189122 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47279 + ... + 47282.

2¹⁸⁹¹²² is an apocalyptic number.

189122 is a deficient number, since it is larger than the sum of its proper divisors (94564).

189122 is an equidigital number, since it uses as much as digits as its factorization.

189122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94563.

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

The square root of 189122 is about 434.8815930802. The cubic root of 189122 is about 57.4002808486.

The spelling of 189122 in words is "one hundred eighty-nine thousand, one hundred twenty-two".