12103725 has 24 divisors (see below), whose sum is σ = 20302272. Its totient is φ = 6361600.

The previous prime is 12103709. The next prime is 12103747. The reversal of 12103725 is 52730121.

It is not a de Polignac number, because 12103725 - 2⁴ = 12103709 is a prime.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 4189 + ... + 6461.

It is an arithmetic number, because the mean of its divisors is an integer number (845928).

Almost surely, 2^12103725 is an apocalyptic number.

12103725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12103725 is a deficient number, since it is larger than the sum of its proper divisors (8198547).

12103725 is a wasteful number, since it uses less digits than its factorization.

12103725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12103725 is about 3479.0408160871. The cubic root of 12103725 is about 229.6005985752.

Adding to 12103725 its reverse (52730121), we get a palindrome (64833846).

The spelling of 12103725 in words is "twelve million, one hundred three thousand, seven hundred twenty-five".