122297894 has 4 divisors (see below), whose sum is σ = 183446844. Its totient is φ = 61148946.

The previous prime is 122297887. The next prime is 122297933. The reversal of 122297894 is 498792221.

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

It is a congruent number.

It is an unprimeable number.

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, 30574472 + ... + 30574475.

It is an arithmetic number, because the mean of its divisors is an integer number (45861711).

Almost surely, 2^122297894 is an apocalyptic number.

122297894 is a deficient number, since it is larger than the sum of its proper divisors (61148950).

122297894 is an equidigital number, since it uses as much as digits as its factorization.

122297894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61148949.

The product of its digits is 145152, while the sum is 44.

The square root of 122297894 is about 11058.8378232073. The cubic root of 122297894 is about 496.3709152152.

The spelling of 122297894 in words is "one hundred twenty-two million, two hundred ninety-seven thousand, eight hundred ninety-four".