12191325 has 24 divisors (see below), whose sum is σ = 20543328. Its totient is φ = 6377280.

The previous prime is 12191299. The next prime is 12191327. The reversal of 12191325 is 52319121.

12191325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12191325 - 2¹² = 12187229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12191295 and 12191304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12191327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2442 + ... + 5508.

It is an arithmetic number, because the mean of its divisors is an integer number (855972).

Almost surely, 2^12191325 is an apocalyptic number.

12191325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12191325 is a deficient number, since it is larger than the sum of its proper divisors (8352003).

12191325 is a wasteful number, since it uses less digits than its factorization.

12191325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133 (or 3128 counting only the distinct ones).

The product of its digits is 540, while the sum is 24.

The square root of 12191325 is about 3491.6077958442. The cubic root of 12191325 is about 230.1531745892.

The spelling of 12191325 in words is "twelve million, one hundred ninety-one thousand, three hundred twenty-five".