123022790 has 32 divisors (see below), whose sum is σ = 242261280. Its totient is φ = 44608000.

The previous prime is 123022769. The next prime is 123022799. The reversal of 123022790 is 97220321.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123022799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42716 + ... + 45504.

It is an arithmetic number, because the mean of its divisors is an integer number (7570665).

Almost surely, 2^123022790 is an apocalyptic number.

123022790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123022790 is a deficient number, since it is larger than the sum of its proper divisors (119238490).

123022790 is a wasteful number, since it uses less digits than its factorization.

123022790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 123022790 is about 11091.5639113698. The cubic root of 123022790 is about 497.3496966052.

The spelling of 123022790 in words is "one hundred twenty-three million, twenty-two thousand, seven hundred ninety".