122055187 has 2 divisors, whose sum is σ = 122055188. Its totient is φ = 122055186.

The previous prime is 122055179. The next prime is 122055209. The reversal of 122055187 is 781550221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122055187 - 2³ = 122055179 is a prime.

It is not a weakly prime, because it can be changed into another prime (122055127) 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 as a sum of consecutive naturals, namely, 61027593 + 61027594.

It is an arithmetic number, because the mean of its divisors is an integer number (61027594).

Almost surely, 2^122055187 is an apocalyptic number.

122055187 is a deficient number, since it is larger than the sum of its proper divisors (1).

122055187 is an equidigital number, since it uses as much as digits as its factorization.

122055187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 122055187 is about 11047.8589328431. The cubic root of 122055187 is about 496.0423391602.

The spelling of 122055187 in words is "one hundred twenty-two million, fifty-five thousand, one hundred eighty-seven".