13135746 has 32 divisors (see below), whose sum is σ = 28647360. Its totient is φ = 3991104.

The previous prime is 13135739. The next prime is 13135789. The reversal of 13135746 is 64753131.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5460 + ... + 7488.

It is an arithmetic number, because the mean of its divisors is an integer number (895230).

Almost surely, 2^13135746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13135746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14323680).

13135746 is an abundant number, since it is smaller than the sum of its proper divisors (15511614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13135746 is a wasteful number, since it uses less digits than its factorization.

13135746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130.

The product of its digits is 7560, while the sum is 30.

The square root of 13135746 is about 3624.3269720046. The cubic root of 13135746 is about 235.9490577587.

Adding to 13135746 its reverse (64753131), we get a palindrome (77888877).

The spelling of 13135746 in words is "thirteen million, one hundred thirty-five thousand, seven hundred forty-six".