123612125 has 32 divisors (see below), whose sum is σ = 189885696. Its totient is φ = 78235200.

The previous prime is 123612121. The next prime is 123612127. The reversal of 123612125 is 521216321.

It is not a de Polignac number, because 123612125 - 2² = 123612121 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 123612125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123612121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5942 + ... + 16808.

It is an arithmetic number, because the mean of its divisors is an integer number (5933928).

Almost surely, 2^123612125 is an apocalyptic number.

It is an amenable number.

123612125 is a deficient number, since it is larger than the sum of its proper divisors (66273571).

123612125 is a wasteful number, since it uses less digits than its factorization.

123612125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10902 (or 10892 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 123612125 is about 11118.0989831895. The cubic root of 123612125 is about 498.1426087392.

Adding to 123612125 its reverse (521216321), we get a palindrome (644828446).

The spelling of 123612125 in words is "one hundred twenty-three million, six hundred twelve thousand, one hundred twenty-five".