122243154 has 48 divisors (see below), whose sum is σ = 270643296. Its totient is φ = 36780480.

The previous prime is 122243129. The next prime is 122243159. The reversal of 122243154 is 451342221.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122243159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117822 + ... + 118854.

It is an arithmetic number, because the mean of its divisors is an integer number (5638402).

Almost surely, 2^122243154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122243154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135321648).

122243154 is an abundant number, since it is smaller than the sum of its proper divisors (148400142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122243154 is a wasteful number, since it uses less digits than its factorization.

122243154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223 (or 1212 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 122243154 is about 11056.3626025922. The cubic root of 122243154 is about 496.2968463496.

Adding to 122243154 its reverse (451342221), we get a palindrome (573585375).

The spelling of 122243154 in words is "one hundred twenty-two million, two hundred forty-three thousand, one hundred fifty-four".