122997255 has 16 divisors (see below), whose sum is σ = 197273184. Its totient is φ = 65439360.

The previous prime is 122997247. The next prime is 122997263. The reversal of 122997255 is 552799221.

It is an interprime number because it is at equal distance from previous prime (122997247) and next prime (122997263).

It is not a de Polignac number, because 122997255 - 2³ = 122997247 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 3424 + ... + 16053.

It is an arithmetic number, because the mean of its divisors is an integer number (12329574).

Almost surely, 2^122997255 is an apocalyptic number.

122997255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122997255 is a deficient number, since it is larger than the sum of its proper divisors (74275929).

122997255 is a wasteful number, since it uses less digits than its factorization.

122997255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19906.

The product of its digits is 113400, while the sum is 42.

The square root of 122997255 is about 11090.4127515616. The cubic root of 122997255 is about 497.3152837313.

The spelling of 122997255 in words is "one hundred twenty-two million, nine hundred ninety-seven thousand, two hundred fifty-five".