13136573 has 4 divisors (see below), whose sum is σ = 13147068. Its totient is φ = 13126080.

The previous prime is 13136567. The next prime is 13136603. The reversal of 13136573 is 37563131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37563131 = 1093 ⋅34367.

It can be written as a sum of positive squares in 2 ways, for example, as 12945604 + 190969 = 3598^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 13136573 - 2⁶ = 13136509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13136873) 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 3 ways as a sum of consecutive naturals, for example, 3068 + ... + 5973.

It is an arithmetic number, because the mean of its divisors is an integer number (3286767).

Almost surely, 2^13136573 is an apocalyptic number.

It is an amenable number.

13136573 is a deficient number, since it is larger than the sum of its proper divisors (10495).

13136573 is an equidigital number, since it uses as much as digits as its factorization.

13136573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10494.

The product of its digits is 5670, while the sum is 29.

The square root of 13136573 is about 3624.4410603568. The cubic root of 13136573 is about 235.9540092800.

The spelling of 13136573 in words is "thirteen million, one hundred thirty-six thousand, five hundred seventy-three".