135728575 has 6 divisors (see below), whose sum is σ = 168303464. Its totient is φ = 108582840.

The previous prime is 135728563. The next prime is 135728623. The reversal of 135728575 is 575827531.

It is not a de Polignac number, because 135728575 - 2¹³ = 135720383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2714547 + ... + 2714596.

Almost surely, 2^135728575 is an apocalyptic number.

135728575 is a deficient number, since it is larger than the sum of its proper divisors (32574889).

135728575 is an equidigital number, since it uses as much as digits as its factorization.

135728575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429153 (or 5429148 counting only the distinct ones).

The product of its digits is 294000, while the sum is 43.

The square root of 135728575 is about 11650.2607266962. The cubic root of 135728575 is about 513.9139774890.

The spelling of 135728575 in words is "one hundred thirty-five million, seven hundred twenty-eight thousand, five hundred seventy-five".