122345678 has 16 divisors (see below), whose sum is σ = 225869280. Its totient is φ = 48400416.

The previous prime is 122345669. The next prime is 122345761. The reversal of 122345678 is 876543221.

It is a happy number.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335933 + ... + 336296.

It is an arithmetic number, because the mean of its divisors is an integer number (14116830).

Almost surely, 2^122345678 is an apocalyptic number.

122345678 is a deficient number, since it is larger than the sum of its proper divisors (103523602).

122345678 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 122345678 = (275183642)₉.

122345678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672251.

The product of its digits is 80640, while the sum is 38.

The square root of 122345678 is about 11060.9980562334. The cubic root of 122345678 is about 496.4355538300.

Adding to 122345678 its reverse (876543221), we get a palindrome (998888899).

The spelling of 122345678 in words is "one hundred twenty-two million, three hundred forty-five thousand, six hundred seventy-eight".