122543516 has 12 divisors (see below), whose sum is σ = 215637240. Its totient is φ = 60932880.

The previous prime is 122543513. The next prime is 122543539. The reversal of 122543516 is 615345221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122543513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83906 + ... + 85353.

It is an arithmetic number, because the mean of its divisors is an integer number (17969770).

Almost surely, 2^122543516 is an apocalyptic number.

It is an amenable number.

122543516 is a deficient number, since it is larger than the sum of its proper divisors (93093724).

122543516 is a wasteful number, since it uses less digits than its factorization.

122543516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169444 (or 169442 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 122543516 is about 11069.9374885317. The cubic root of 122543516 is about 496.7029953057.

Adding to 122543516 its reverse (615345221), we get a palindrome (737888737).

The spelling of 122543516 in words is "one hundred twenty-two million, five hundred forty-three thousand, five hundred sixteen".