122543412 has 24 divisors (see below), whose sum is σ = 302754816. Its totient is φ = 38444928.

The previous prime is 122543389. The next prime is 122543419. The reversal of 122543412 is 214345221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122543419) 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, 300148 + ... + 300555.

It is an arithmetic number, because the mean of its divisors is an integer number (12614784).

Almost surely, 2^122543412 is an apocalyptic number.

122543412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122543412 is an abundant number, since it is smaller than the sum of its proper divisors (180211404).

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

122543412 is a wasteful number, since it uses less digits than its factorization.

122543412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600727 (or 600725 counting only the distinct ones).

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

The square root of 122543412 is about 11069.9327911239. The cubic root of 122543412 is about 496.7028547920.

Adding to 122543412 its reverse (214345221), we get a palindrome (336888633).

The spelling of 122543412 in words is "one hundred twenty-two million, five hundred forty-three thousand, four hundred twelve".