122855089 has 4 divisors (see below), whose sum is σ = 140405824. Its totient is φ = 105304356.

The previous prime is 122855081. The next prime is 122855093. The reversal of 122855089 is 980558221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122855089 - 2³ = 122855081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122855081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8775357 + ... + 8775370.

It is an arithmetic number, because the mean of its divisors is an integer number (35101456).

Almost surely, 2^122855089 is an apocalyptic number.

It is an amenable number.

122855089 is a deficient number, since it is larger than the sum of its proper divisors (17550735).

122855089 is an equidigital number, since it uses as much as digits as its factorization.

122855089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17550734.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 122855089 is about 11084.0014886322. The cubic root of 122855089 is about 497.1236030793.

The spelling of 122855089 in words is "one hundred twenty-two million, eight hundred fifty-five thousand, eighty-nine".