122555155 has 8 divisors (see below), whose sum is σ = 153460512. Its totient is φ = 93781248.

The previous prime is 122555141. The next prime is 122555171. The reversal of 122555155 is 551555221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122555155 - 2⁹ = 122554643 is a prime.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 532734 + ... + 532963.

It is an arithmetic number, because the mean of its divisors is an integer number (19182564).

Almost surely, 2^122555155 is an apocalyptic number.

122555155 is a deficient number, since it is larger than the sum of its proper divisors (30905357).

122555155 is a wasteful number, since it uses less digits than its factorization.

122555155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065725.

The product of its digits is 12500, while the sum is 31.

The square root of 122555155 is about 11070.4631791086. The cubic root of 122555155 is about 496.7187201773.

The spelling of 122555155 in words is "one hundred twenty-two million, five hundred fifty-five thousand, one hundred fifty-five".