13245147 has 16 divisors (see below), whose sum is σ = 20656000. Its totient is φ = 8365032.

The previous prime is 13245137. The next prime is 13245151. The reversal of 13245147 is 74154231.

It is not a de Polignac number, because 13245147 - 2¹⁰ = 13244123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 13245147.

It is not an unprimeable number, because it can be changed into a prime (13245107) 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 15 ways as a sum of consecutive naturals, for example, 12397 + ... + 13422.

It is an arithmetic number, because the mean of its divisors is an integer number (1291000).

Almost surely, 2^13245147 is an apocalyptic number.

13245147 is a deficient number, since it is larger than the sum of its proper divisors (7410853).

13245147 is a wasteful number, since it uses less digits than its factorization.

13245147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25847 (or 25841 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 13245147 is about 3639.3882727733. The cubic root of 13245147 is about 236.6022811916.

Adding to 13245147 its reverse (74154231), we get a palindrome (87399378).

The spelling of 13245147 in words is "thirteen million, two hundred forty-five thousand, one hundred forty-seven".