13192945 has 4 divisors (see below), whose sum is σ = 15831540. Its totient is φ = 10554352.

The previous prime is 13192937. The next prime is 13192957. The reversal of 13192945 is 54929131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4613904 + 8579041 = 2148^2 + 2929^2 .

It is a cyclic number.

It is not a de Polignac number, because 13192945 - 2³ = 13192937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13192945.

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 3 ways as a sum of consecutive naturals, for example, 1319290 + ... + 1319299.

It is an arithmetic number, because the mean of its divisors is an integer number (3957885).

Almost surely, 2^13192945 is an apocalyptic number.

It is an amenable number.

13192945 is a deficient number, since it is larger than the sum of its proper divisors (2638595).

13192945 is an equidigital number, since it uses as much as digits as its factorization.

13192945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638594.

The product of its digits is 9720, while the sum is 34.

The square root of 13192945 is about 3632.2093827311. The cubic root of 13192945 is about 236.2910382877.

The spelling of 13192945 in words is "thirteen million, one hundred ninety-two thousand, nine hundred forty-five".