122727880 has 48 divisors (see below), whose sum is σ = 303535260. Its totient is φ = 44626560.

The previous prime is 122727851. The next prime is 122727887. The reversal of 122727880 is 88727221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119552356 + 3175524 = 10934^2 + 1782^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (122727887) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 7839 + ... + 17518.

Almost surely, 2^122727880 is an apocalyptic number.

122727880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122727880 is an abundant number, since it is smaller than the sum of its proper divisors (180807380).

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

122727880 is a wasteful number, since it uses less digits than its factorization.

122727880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25390 (or 25375 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 122727880 is about 11078.2615964780. The cubic root of 122727880 is about 496.9519633692.

The spelling of 122727880 in words is "one hundred twenty-two million, seven hundred twenty-seven thousand, eight hundred eighty".