13145653 has 4 divisors (see below), whose sum is σ = 13154688. Its totient is φ = 13136620.

The previous prime is 13145651. The next prime is 13145681. The reversal of 13145653 is 35654131.

13145653 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35654131 = 163 ⋅218737.

It is a cyclic number.

It is not a de Polignac number, because 13145653 - 2¹ = 13145651 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 (13145651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1783 + ... + 5428.

It is an arithmetic number, because the mean of its divisors is an integer number (3288672).

Almost surely, 2^13145653 is an apocalyptic number.

It is an amenable number.

13145653 is a deficient number, since it is larger than the sum of its proper divisors (9035).

13145653 is an equidigital number, since it uses as much as digits as its factorization.

13145653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9034.

The product of its digits is 5400, while the sum is 28.

The square root of 13145653 is about 3625.6934509139. The cubic root of 13145653 is about 236.0083605676.

Adding to 13145653 its reverse (35654131), we get a palindrome (48799784).

The spelling of 13145653 in words is "thirteen million, one hundred forty-five thousand, six hundred fifty-three".