13135732 has 12 divisors (see below), whose sum is σ = 23421636. Its totient is φ = 6443840.

The previous prime is 13135729. The next prime is 13135739. The reversal of 13135732 is 23753131.

It can be written as a sum of positive squares in 2 ways, for example, as 10588516 + 2547216 = 3254^2 + 1596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13135697 and 13135706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13135739) 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, 30769 + ... + 31192.

It is an arithmetic number, because the mean of its divisors is an integer number (1951803).

Almost surely, 2^13135732 is an apocalyptic number.

It is an amenable number.

13135732 is a deficient number, since it is larger than the sum of its proper divisors (10285904).

13135732 is a wasteful number, since it uses less digits than its factorization.

13135732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62018 (or 62016 counting only the distinct ones).

The product of its digits is 1890, while the sum is 25.

The square root of 13135732 is about 3624.3250406110. The cubic root of 13135732 is about 235.9489739343.

Adding to 13135732 its reverse (23753131), we get a palindrome (36888863).

The spelling of 13135732 in words is "thirteen million, one hundred thirty-five thousand, seven hundred thirty-two".