122305616 has 20 divisors (see below), whose sum is σ = 250906932. Its totient is φ = 57555456.

The previous prime is 122305567. The next prime is 122305639. The reversal of 122305616 is 616503221.

It can be written as a sum of positive squares in 2 ways, for example, as 58369600 + 63936016 = 7640^2 + 7996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224555 + ... + 225098.

Almost surely, 2^122305616 is an apocalyptic number.

122305616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122305616 is an abundant number, since it is smaller than the sum of its proper divisors (128601316).

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

122305616 is a wasteful number, since it uses less digits than its factorization.

122305616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449678 (or 449672 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 122305616 is about 11059.1869502238. The cubic root of 122305616 is about 496.3813620987.

Adding to 122305616 its reverse (616503221), we get a palindrome (738808837).

The spelling of 122305616 in words is "one hundred twenty-two million, three hundred five thousand, six hundred sixteen".