123798285 has 48 divisors (see below), whose sum is σ = 232098048. Its totient is φ = 60681600.

The previous prime is 123798277. The next prime is 123798299. The reversal of 123798285 is 582897321.

It is a happy number.

It is not a de Polignac number, because 123798285 - 2³ = 123798277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 123798285.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 251890 + ... + 252380.

It is an arithmetic number, because the mean of its divisors is an integer number (4835376).

Almost surely, 2^123798285 is an apocalyptic number.

123798285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123798285 is a deficient number, since it is larger than the sum of its proper divisors (108299763).

123798285 is a wasteful number, since it uses less digits than its factorization.

123798285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 943 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 123798285 is about 11126.4677683441. The cubic root of 123798285 is about 498.3925510873.

The spelling of 123798285 in words is "one hundred twenty-three million, seven hundred ninety-eight thousand, two hundred eighty-five".