135443717 has 8 divisors (see below), whose sum is σ = 143902200. Its totient is φ = 127237824.

The previous prime is 135443713. The next prime is 135443731. The reversal of 135443717 is 717344531.

It can be written as a sum of positive squares in 4 ways, for example, as 23951236 + 111492481 = 4894^2 + 10559^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 135443717 - 2² = 135443713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135443713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62042 + ... + 64187.

It is an arithmetic number, because the mean of its divisors is an integer number (17987775).

Almost surely, 2^135443717 is an apocalyptic number.

It is an amenable number.

135443717 is a deficient number, since it is larger than the sum of its proper divisors (8458483).

135443717 is a wasteful number, since it uses less digits than its factorization.

135443717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126295.

The product of its digits is 35280, while the sum is 35.

The square root of 135443717 is about 11638.0289138668. The cubic root of 135443717 is about 513.5542029898.

The spelling of 135443717 in words is "one hundred thirty-five million, four hundred forty-three thousand, seven hundred seventeen".