123255506 has 8 divisors (see below), whose sum is σ = 201690864. Its totient is φ = 56025220.

The previous prime is 123255499. The next prime is 123255521. The reversal of 123255506 is 605552321.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2801240 + ... + 2801283.

It is an arithmetic number, because the mean of its divisors is an integer number (25211358).

Almost surely, 2^123255506 is an apocalyptic number.

123255506 is a deficient number, since it is larger than the sum of its proper divisors (78435358).

123255506 is a wasteful number, since it uses less digits than its factorization.

123255506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602536.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 123255506 is about 11102.0496305862. The cubic root of 123255506 is about 497.6631028393.

The spelling of 123255506 in words is "one hundred twenty-three million, two hundred fifty-five thousand, five hundred six".