195122 has 4 divisors (see below), whose sum is σ = 292686. Its totient is φ = 97560.

The previous prime is 195121. The next prime is 195127. The reversal of 195122 is 221591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221591 = 71 ⋅3121.

It can be written as a sum of positive squares in only one way, i.e., 192721 + 2401 = 439^2 + 49^2 .

It is a junction number, because it is equal to n+sod(n) for n = 195094 and 195103.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 195122.

It is not an unprimeable number, because it can be changed into a prime (195121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48779 + ... + 48782.

2¹⁹⁵¹²² is an apocalyptic number.

195122 is a deficient number, since it is larger than the sum of its proper divisors (97564).

195122 is an equidigital number, since it uses as much as digits as its factorization.

195122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97563.

The product of its digits is 180, while the sum is 20.

The square root of 195122 is about 441.7261595151. The cubic root of 195122 is about 58.0009908669. Note that the first 3 decimals are identical.

The spelling of 195122 in words is "one hundred ninety-five thousand, one hundred twenty-two".