123280092 has 108 divisors (see below), whose sum is σ = 352510704. Its totient is φ = 36241920.

The previous prime is 123280057. The next prime is 123280093. The reversal of 123280092 is 290082321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123280093) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 139492 + ... + 140372.

It is an arithmetic number, because the mean of its divisors is an integer number (3263988).

Almost surely, 2^123280092 is an apocalyptic number.

123280092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123280092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176255352).

123280092 is an abundant number, since it is smaller than the sum of its proper divisors (229230612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123280092 is a wasteful number, since it uses less digits than its factorization.

123280092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 123280092 is about 11103.1568483923. The cubic root of 123280092 is about 497.6961905609.

The spelling of 123280092 in words is "one hundred twenty-three million, two hundred eighty thousand, ninety-two".