122155455 has 16 divisors (see below), whose sum is σ = 206946144. Its totient is φ = 61317120.

The previous prime is 122155433. The next prime is 122155457. The reversal of 122155455 is 554551221.

It is not a de Polignac number, because 122155455 - 2⁶ = 122155391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122155457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239266 + ... + 239775.

It is an arithmetic number, because the mean of its divisors is an integer number (12934134).

Almost surely, 2^122155455 is an apocalyptic number.

122155455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122155455 is a deficient number, since it is larger than the sum of its proper divisors (84790689).

122155455 is a wasteful number, since it uses less digits than its factorization.

122155455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479066.

The product of its digits is 10000, while the sum is 30.

The square root of 122155455 is about 11052.3958941037. The cubic root of 122155455 is about 496.1781344537.

The spelling of 122155455 in words is "one hundred twenty-two million, one hundred fifty-five thousand, four hundred fifty-five".