122238789 has 8 divisors (see below), whose sum is σ = 172572480. Its totient is φ = 76698816.

The previous prime is 122238773. The next prime is 122238791. The reversal of 122238789 is 987832221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122238789 - 2⁴ = 122238773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122238789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122238769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198369 + ... + 1198470.

It is an arithmetic number, because the mean of its divisors is an integer number (21571560).

Almost surely, 2^122238789 is an apocalyptic number.

It is an amenable number.

122238789 is a deficient number, since it is larger than the sum of its proper divisors (50333691).

122238789 is a wasteful number, since it uses less digits than its factorization.

122238789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396859.

The product of its digits is 96768, while the sum is 42.

The square root of 122238789 is about 11056.1652031796. The cubic root of 122238789 is about 496.2909391026.

It can be divided in two parts, 12223 and 8789, that added together give a palindrome (21012).

The spelling of 122238789 in words is "one hundred twenty-two million, two hundred thirty-eight thousand, seven hundred eighty-nine".