13103453 has 6 divisors (see below), whose sum is σ = 14403102. Its totient is φ = 11912120.

The previous prime is 13103443. The next prime is 13103509. The reversal of 13103453 is 35430131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7086244 + 6017209 = 2662^2 + 2453^2 .

It is not a de Polignac number, because 13103453 - 2⁸ = 13103197 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 (13103423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54026 + ... + 54267.

It is an arithmetic number, because the mean of its divisors is an integer number (2400517).

Almost surely, 2^13103453 is an apocalyptic number.

It is an amenable number.

13103453 is a deficient number, since it is larger than the sum of its proper divisors (1299649).

13103453 is a wasteful number, since it uses less digits than its factorization.

13103453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108315 (or 108304 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 13103453 is about 3619.8691965318. The cubic root of 13103453 is about 235.7555462163.

Adding to 13103453 its reverse (35430131), we get a palindrome (48533584).

The spelling of 13103453 in words is "thirteen million, one hundred three thousand, four hundred fifty-three".