123308925 has 24 divisors (see below), whose sum is σ = 204239904. Its totient is φ = 65645760.

The previous prime is 123308923. The next prime is 123308929. The reversal of 123308925 is 529803321.

It is not a de Polignac number, because 123308925 - 2¹ = 123308923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123308921) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 53854 + ... + 56096.

It is an arithmetic number, because the mean of its divisors is an integer number (8509996).

Almost surely, 2^123308925 is an apocalyptic number.

123308925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123308925 is a deficient number, since it is larger than the sum of its proper divisors (80930979).

123308925 is a wasteful number, since it uses less digits than its factorization.

123308925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989 (or 2984 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 123308925 is about 11104.4551869959. The cubic root of 123308925 is about 497.7349882706.

The spelling of 123308925 in words is "one hundred twenty-three million, three hundred eight thousand, nine hundred twenty-five".