12192505 has 24 divisors (see below), whose sum is σ = 16232832. Its totient is φ = 8783424.

The previous prime is 12192473. The next prime is 12192511. The reversal of 12192505 is 50529121.

It is not a de Polignac number, because 12192505 - 2⁵ = 12192473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12192505.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 39562 + ... + 39868.

It is an arithmetic number, because the mean of its divisors is an integer number (676368).

Almost surely, 2^12192505 is an apocalyptic number.

It is an amenable number.

12192505 is a deficient number, since it is larger than the sum of its proper divisors (4040327).

12192505 is a wasteful number, since it uses less digits than its factorization.

12192505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 12192505 is about 3491.7767683516. The cubic root of 12192505 is about 230.1605998687.

The spelling of 12192505 in words is "twelve million, one hundred ninety-two thousand, five hundred five".