122105806 has 4 divisors (see below), whose sum is σ = 183158712. Its totient is φ = 61052902.

The previous prime is 122105791. The next prime is 122105821. The reversal of 122105806 is 608501221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (122105791) and next prime (122105821).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30526450 + ... + 30526453.

It is an arithmetic number, because the mean of its divisors is an integer number (45789678).

Almost surely, 2^122105806 is an apocalyptic number.

122105806 is a deficient number, since it is larger than the sum of its proper divisors (61052906).

122105806 is an equidigital number, since it uses as much as digits as its factorization.

122105806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61052905.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 122105806 is about 11050.1495917476. The cubic root of 122105806 is about 496.1109029454.

The spelling of 122105806 in words is "one hundred twenty-two million, one hundred five thousand, eight hundred six".