122543403844 has 27 divisors (see below), whose sum is σ = 215483858877. Its totient is φ = 60977999904.

The previous prime is 122543403839. The next prime is 122543403859. The reversal of 122543403844 is 448304345221.

The square root of 122543403844 is 350062.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 105982802500 + 16560601344 = 325550^2 + 128688^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122543403797 and 122543403806.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 268147264 + ... + 268147720.

Almost surely, 2^122543403844 is an apocalyptic number.

122543403844 is the 350062-nd square number.

It is an amenable number.

122543403844 is a deficient number, since it is larger than the sum of its proper divisors (92940455033).

122543403844 is an frugal number, since it uses more digits than its factorization.

122543403844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 40.

The spelling of 122543403844 in words is "one hundred twenty-two billion, five hundred forty-three million, four hundred three thousand, eight hundred forty-four".