12102725 has 12 divisors (see below), whose sum is σ = 15890724. Its totient is φ = 9112320.

The previous prime is 12102703. The next prime is 12102733. The reversal of 12102725 is 52720121.

It can be written as a sum of positive squares in 6 ways, for example, as 6241 + 12096484 = 79^2 + 3478^2 .

It is not a de Polignac number, because 12102725 - 2⁶ = 12102661 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 12102697 and 12102706.

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 11 ways as a sum of consecutive naturals, for example, 13814 + ... + 14663.

It is an arithmetic number, because the mean of its divisors is an integer number (1324227).

Almost surely, 2^12102725 is an apocalyptic number.

It is an amenable number.

12102725 is a deficient number, since it is larger than the sum of its proper divisors (3787999).

12102725 is a wasteful number, since it uses less digits than its factorization.

12102725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28504 (or 28499 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12102725 is about 3478.8970953450. The cubic root of 12102725 is about 229.5942752622.

Adding to 12102725 its reverse (52720121), we get a palindrome (64822846).

The spelling of 12102725 in words is "twelve million, one hundred two thousand, seven hundred twenty-five".