122445678 has 8 divisors (see below), whose sum is σ = 244891368. Its totient is φ = 40815224.

The previous prime is 122445647. The next prime is 122445733. The reversal of 122445678 is 876544221.

It is a sphenic number, since it is the product of 3 distinct primes.

122445678 is an admirable number.

It is a plaindrome in base 10.

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 3 ways as a sum of consecutive naturals, for example, 10203801 + ... + 10203812.

It is an arithmetic number, because the mean of its divisors is an integer number (30611421).

Almost surely, 2^122445678 is an apocalyptic number.

122445678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122445678 is a wasteful number, since it uses less digits than its factorization.

122445678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20407618.

The product of its digits is 107520, while the sum is 39.

The square root of 122445678 is about 11065.5175206585. The cubic root of 122445678 is about 496.5707718910.

Adding to 122445678 its reverse (876544221), we get a palindrome (998989899).

The spelling of 122445678 in words is "one hundred twenty-two million, four hundred forty-five thousand, six hundred seventy-eight".