13245813 has 24 divisors (see below), whose sum is σ = 22284288. Its totient is φ = 7424352.

The previous prime is 13245811. The next prime is 13245823. The reversal of 13245813 is 31854231.

It is a happy number.

It is not a de Polignac number, because 13245813 - 2¹ = 13245811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245811) 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 23 ways as a sum of consecutive naturals, for example, 1356 + ... + 5322.

It is an arithmetic number, because the mean of its divisors is an integer number (928512).

Almost surely, 2^13245813 is an apocalyptic number.

It is an amenable number.

13245813 is a deficient number, since it is larger than the sum of its proper divisors (9038475).

13245813 is a wasteful number, since it uses less digits than its factorization.

13245813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033 (or 4030 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13245813 is about 3639.4797705167. The cubic root of 13245813 is about 236.6062467819.

The spelling of 13245813 in words is "thirteen million, two hundred forty-five thousand, eight hundred thirteen".