135072717 has 16 divisors (see below), whose sum is σ = 194976768. Its totient is φ = 82681920.

The previous prime is 135072697. The next prime is 135072733. The reversal of 135072717 is 717270531.

It is not a de Polignac number, because 135072717 - 2¹⁰ = 135071693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135072757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1618 + ... + 16515.

It is an arithmetic number, because the mean of its divisors is an integer number (12186048).

Almost surely, 2^135072717 is an apocalyptic number.

It is an amenable number.

135072717 is a deficient number, since it is larger than the sum of its proper divisors (59904051).

135072717 is a wasteful number, since it uses less digits than its factorization.

135072717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18340.

The product of its (nonzero) digits is 10290, while the sum is 33.

The square root of 135072717 is about 11622.0788587929. The cubic root of 135072717 is about 513.0848743747.

The spelling of 135072717 in words is "one hundred thirty-five million, seventy-two thousand, seven hundred seventeen".