13103217 has 36 divisors (see below), whose sum is σ = 20703540. Its totient is φ = 7978176.

The previous prime is 13103201. The next prime is 13103219. The reversal of 13103217 is 71230131.

It can be written as a sum of positive squares in 2 ways, for example, as 10556001 + 2547216 = 3249^2 + 1596^2 .

It is not a de Polignac number, because 13103217 - 2⁴ = 13103201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13103217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103219) 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 35 ways as a sum of consecutive naturals, for example, 120159 + ... + 120267.

Almost surely, 2^13103217 is an apocalyptic number.

It is an amenable number.

13103217 is a deficient number, since it is larger than the sum of its proper divisors (7600323).

13103217 is a wasteful number, since it uses less digits than its factorization.

13103217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 13103217 is about 3619.8365985221. The cubic root of 13103217 is about 235.7541308478.

Adding to 13103217 its reverse (71230131), we get a palindrome (84333348).

The spelling of 13103217 in words is "thirteen million, one hundred three thousand, two hundred seventeen".