122543112 has 32 divisors (see below), whose sum is σ = 314640000. Its totient is φ = 39743424.

The previous prime is 122543081. The next prime is 122543119. The reversal of 122543112 is 211345221.

It is not an unprimeable number, because it can be changed into a prime (122543119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68112 + ... + 69887.

It is an arithmetic number, because the mean of its divisors is an integer number (9832500).

Almost surely, 2^122543112 is an apocalyptic number.

122543112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122543112 is an abundant number, since it is smaller than the sum of its proper divisors (192096888).

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

122543112 is a wasteful number, since it uses less digits than its factorization.

122543112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138045 (or 138041 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 122543112 is about 11069.9192408978. The cubic root of 122543112 is about 496.7024494636.

Adding to 122543112 its reverse (211345221), we get a palindrome (333888333).

The spelling of 122543112 in words is "one hundred twenty-two million, five hundred forty-three thousand, one hundred twelve".