135570239 has 8 divisors (see below), whose sum is σ = 155834400. Its totient is φ = 115530336.

The previous prime is 135570217. The next prime is 135570251. The reversal of 135570239 is 932075531.

It is a happy number.

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 135570239 - 2¹⁶ = 135504703 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135570199 and 135570208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135570209) 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 7 ways as a sum of consecutive naturals, for example, 54764 + ... + 57185.

It is an arithmetic number, because the mean of its divisors is an integer number (19479300).

Almost surely, 2^135570239 is an apocalyptic number.

135570239 is a deficient number, since it is larger than the sum of its proper divisors (20264161).

135570239 is a wasteful number, since it uses less digits than its factorization.

135570239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112129.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 135570239 is about 11643.4633593274. The cubic root of 135570239 is about 513.7140619699.

The spelling of 135570239 in words is "one hundred thirty-five million, five hundred seventy thousand, two hundred thirty-nine".