122305816 has 8 divisors (see below), whose sum is σ = 229323420. Its totient is φ = 61152904.

The previous prime is 122305801. The next prime is 122305861. The reversal of 122305816 is 618503221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7644106 + ... + 7644121.

Almost surely, 2^122305816 is an apocalyptic number.

It is an amenable number.

122305816 is a deficient number, since it is larger than the sum of its proper divisors (107017604).

122305816 is a wasteful number, since it uses less digits than its factorization.

122305816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15288233 (or 15288229 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 122305816 is about 11059.1959924761. The cubic root of 122305816 is about 496.3816326674.

The spelling of 122305816 in words is "one hundred twenty-two million, three hundred five thousand, eight hundred sixteen".