13135481 has 8 divisors (see below), whose sum is σ = 13618440. Its totient is φ = 12659328.

The previous prime is 13135477. The next prime is 13135519. The reversal of 13135481 is 18453131.

13135481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8317456 + 4818025 = 2884^2 + 2195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13135481 - 2² = 13135477 is a prime.

It is a super-2 number, since 2×13135481² = 345081722202722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13135481.

It is not an unprimeable number, because it can be changed into a prime (13135181) 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 7 ways as a sum of consecutive naturals, for example, 2405 + ... + 5661.

It is an arithmetic number, because the mean of its divisors is an integer number (1702305).

Almost surely, 2^13135481 is an apocalyptic number.

It is an amenable number.

13135481 is a deficient number, since it is larger than the sum of its proper divisors (482959).

13135481 is a wasteful number, since it uses less digits than its factorization.

13135481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403.

The product of its digits is 1440, while the sum is 26.

The square root of 13135481 is about 3624.2904133085. The cubic root of 13135481 is about 235.9474710725.

The spelling of 13135481 in words is "thirteen million, one hundred thirty-five thousand, four hundred eighty-one".