13135715 has 4 divisors (see below), whose sum is σ = 15762864. Its totient is φ = 10508568.

The previous prime is 13135711. The next prime is 13135721. The reversal of 13135715 is 51753131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13135715 - 2² = 13135711 is a prime.

It is a super-2 number, since 2×13135715² = 345094017122450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13135711) 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, 1313567 + ... + 1313576.

It is an arithmetic number, because the mean of its divisors is an integer number (3940716).

Almost surely, 2^13135715 is an apocalyptic number.

13135715 is a deficient number, since it is larger than the sum of its proper divisors (2627149).

13135715 is an equidigital number, since it uses as much as digits as its factorization.

13135715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627148.

The product of its digits is 1575, while the sum is 26.

The square root of 13135715 is about 3624.3226953460. The cubic root of 13135715 is about 235.9488721475.

Adding to 13135715 its reverse (51753131), we get a palindrome (64888846).

The spelling of 13135715 in words is "thirteen million, one hundred thirty-five thousand, seven hundred fifteen".