12725111 has 4 divisors (see below), whose sum is σ = 14542992. Its totient is φ = 10907232.

The previous prime is 12725107. The next prime is 12725123. The reversal of 12725111 is 11152721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11152721 = 73 ⋅152777.

It is not a de Polignac number, because 12725111 - 2² = 12725107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12725101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908930 + ... + 908943.

It is an arithmetic number, because the mean of its divisors is an integer number (3635748).

Almost surely, 2^12725111 is an apocalyptic number.

12725111 is a deficient number, since it is larger than the sum of its proper divisors (1817881).

12725111 is an equidigital number, since it uses as much as digits as its factorization.

12725111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817880.

The product of its digits is 140, while the sum is 20.

The square root of 12725111 is about 3567.2273546832. The cubic root of 12725111 is about 233.4643248613.

Adding to 12725111 its reverse (11152721), we get a palindrome (23877832).

The spelling of 12725111 in words is "twelve million, seven hundred twenty-five thousand, one hundred eleven".