122856895 has 16 divisors (see below), whose sum is σ = 171007488. Its totient is φ = 82985760.

The previous prime is 122856887. The next prime is 122856901. The reversal of 122856895 is 598658221.

It is not a de Polignac number, because 122856895 - 2³ = 122856887 is a prime.

It is a Duffinian number.

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 in 15 ways as a sum of consecutive naturals, for example, 23851 + ... + 28540.

It is an arithmetic number, because the mean of its divisors is an integer number (10687968).

Almost surely, 2^122856895 is an apocalyptic number.

122856895 is a deficient number, since it is larger than the sum of its proper divisors (48150593).

122856895 is an equidigital number, since it uses as much as digits as its factorization.

122856895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52470.

The product of its digits is 345600, while the sum is 46.

The square root of 122856895 is about 11084.0829571057. The cubic root of 122856895 is about 497.1260390137.

The spelling of 122856895 in words is "one hundred twenty-two million, eight hundred fifty-six thousand, eight hundred ninety-five".