122656180 has 12 divisors (see below), whose sum is σ = 257578020. Its totient is φ = 49062464.

The previous prime is 122656169. The next prime is 122656187. The reversal of 122656180 is 81656221.

It can be written as a sum of positive squares in 2 ways, for example, as 83393424 + 39262756 = 9132^2 + 6266^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122656187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3066385 + ... + 3066424.

It is an arithmetic number, because the mean of its divisors is an integer number (21464835).

Almost surely, 2^122656180 is an apocalyptic number.

122656180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122656180 is an abundant number, since it is smaller than the sum of its proper divisors (134921840).

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

122656180 is a wasteful number, since it uses less digits than its factorization.

122656180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6132818 (or 6132816 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 122656180 is about 11075.0250564051. The cubic root of 122656180 is about 496.8551682023.

The spelling of 122656180 in words is "one hundred twenty-two million, six hundred fifty-six thousand, one hundred eighty".