123955028 has 12 divisors (see below), whose sum is σ = 217545300. Its totient is φ = 61799232.

The previous prime is 123955009. The next prime is 123955033. The reversal of 123955028 is 820559321.

It can be written as a sum of positive squares in 2 ways, for example, as 42016324 + 81938704 = 6482^2 + 9052^2 .

It is a congruent number.

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, 43001 + ... + 45792.

It is an arithmetic number, because the mean of its divisors is an integer number (18128775).

Almost surely, 2^123955028 is an apocalyptic number.

It is an amenable number.

123955028 is a deficient number, since it is larger than the sum of its proper divisors (93590272).

123955028 is a wasteful number, since it uses less digits than its factorization.

123955028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89146 (or 89144 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 123955028 is about 11133.5092401273. The cubic root of 123955028 is about 498.6028033196.

The spelling of 123955028 in words is "one hundred twenty-three million, nine hundred fifty-five thousand, twenty-eight".