135525713 has 4 divisors (see below), whose sum is σ = 137747508. Its totient is φ = 133303920.

The previous prime is 135525703. The next prime is 135525721. The reversal of 135525713 is 317525531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62457409 + 73068304 = 7903^2 + 8548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135525713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135525713.

It is not an unprimeable number, because it can be changed into a prime (135525703) 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, 1110806 + ... + 1110927.

It is an arithmetic number, because the mean of its divisors is an integer number (34436877).

Almost surely, 2^135525713 is an apocalyptic number.

It is an amenable number.

135525713 is a deficient number, since it is larger than the sum of its proper divisors (2221795).

135525713 is an equidigital number, since it uses as much as digits as its factorization.

135525713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221794.

The product of its digits is 15750, while the sum is 32.

The square root of 135525713 is about 11641.5511423521. The cubic root of 135525713 is about 513.6578152668.

The spelling of 135525713 in words is "one hundred thirty-five million, five hundred twenty-five thousand, seven hundred thirteen".