123278622 has 8 divisors (see below), whose sum is σ = 246557256. Its totient is φ = 41092872.

The previous prime is 123278609. The next prime is 123278629. The reversal of 123278622 is 226872321.

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

123278622 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123278629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10273213 + ... + 10273224.

It is an arithmetic number, because the mean of its divisors is an integer number (30819657).

Almost surely, 2^123278622 is an apocalyptic number.

123278622 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.

123278622 is a wasteful number, since it uses less digits than its factorization.

123278622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20546442.

The product of its digits is 16128, while the sum is 33.

The square root of 123278622 is about 11103.0906508053. The cubic root of 123278622 is about 497.6942123655.

The spelling of 123278622 in words is "one hundred twenty-three million, two hundred seventy-eight thousand, six hundred twenty-two".