122608851 has 4 divisors (see below), whose sum is σ = 163478472. Its totient is φ = 81739232.

The previous prime is 122608807. The next prime is 122608891. The reversal of 122608851 is 158806221.

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

It is a cyclic number.

It is not a de Polignac number, because 122608851 - 2¹⁷ = 122477779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122608891) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 20434806 + ... + 20434811.

It is an arithmetic number, because the mean of its divisors is an integer number (40869618).

Almost surely, 2^122608851 is an apocalyptic number.

122608851 is a deficient number, since it is larger than the sum of its proper divisors (40869621).

122608851 is an equidigital number, since it uses as much as digits as its factorization.

122608851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40869620.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 122608851 is about 11072.8881056389. Note that the first 3 decimals coincide. The cubic root of 122608851 is about 496.7912532721.

The spelling of 122608851 in words is "one hundred twenty-two million, six hundred eight thousand, eight hundred fifty-one".