122561616 has 40 divisors (see below), whose sum is σ = 318389344. Its totient is φ = 40625280.

The previous prime is 122561597. The next prime is 122561623. The reversal of 122561616 is 616165221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635 + ... + 15741.

Almost surely, 2^122561616 is an apocalyptic number.

122561616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122561616 is an abundant number, since it is smaller than the sum of its proper divisors (195827728).

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

122561616 is a wasteful number, since it uses less digits than its factorization.

122561616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14299 (or 14293 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 122561616 is about 11070.7549878046. The cubic root of 122561616 is about 496.7274488819.

The spelling of 122561616 in words is "one hundred twenty-two million, five hundred sixty-one thousand, six hundred sixteen".