123185052 has 18 divisors (see below), whose sum is σ = 311384528. Its totient is φ = 41061672.

The previous prime is 123185039. The next prime is 123185081. The reversal of 123185052 is 250581321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1710868 + ... + 1710939.

Almost surely, 2^123185052 is an apocalyptic number.

123185052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123185052 is an abundant number, since it is smaller than the sum of its proper divisors (188199476).

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

123185052 is a wasteful number, since it uses less digits than its factorization.

123185052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421817 (or 3421812 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 123185052 is about 11098.8761593235. The cubic root of 123185052 is about 497.5682618050.

The spelling of 123185052 in words is "one hundred twenty-three million, one hundred eighty-five thousand, fifty-two".