122393189 has 4 divisors (see below), whose sum is σ = 127714656. Its totient is φ = 117071724.

The previous prime is 122393171. The next prime is 122393207. The reversal of 122393189 is 981393221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (122393171) and next prime (122393207).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122393189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122393119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2660699 + ... + 2660744.

It is an arithmetic number, because the mean of its divisors is an integer number (31928664).

Almost surely, 2^122393189 is an apocalyptic number.

It is an amenable number.

122393189 is a deficient number, since it is larger than the sum of its proper divisors (5321467).

122393189 is an equidigital number, since it uses as much as digits as its factorization.

122393189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321466.

The product of its digits is 23328, while the sum is 38.

The square root of 122393189 is about 11063.1455291883. The cubic root of 122393189 is about 496.4998064666.

The spelling of 122393189 in words is "one hundred twenty-two million, three hundred ninety-three thousand, one hundred eighty-nine".