122553285 has 16 divisors (see below), whose sum is σ = 196255104. Its totient is φ = 65305152.

The previous prime is 122553281. The next prime is 122553307. The reversal of 122553285 is 582355221.

It is not a de Polignac number, because 122553285 - 2² = 122553281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122553281) 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 15 ways as a sum of consecutive naturals, for example, 18984 + ... + 24606.

It is an arithmetic number, because the mean of its divisors is an integer number (12265944).

Almost surely, 2^122553285 is an apocalyptic number.

122553285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122553285 is a deficient number, since it is larger than the sum of its proper divisors (73701819).

122553285 is a wasteful number, since it uses less digits than its factorization.

122553285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084.

The product of its digits is 24000, while the sum is 33.

The square root of 122553285 is about 11070.3787198090. The cubic root of 122553285 is about 496.7161937808.

The spelling of 122553285 in words is "one hundred twenty-two million, five hundred fifty-three thousand, two hundred eighty-five".