135570771 has 12 divisors (see below), whose sum is σ = 223799472. Its totient is φ = 77468976.

The previous prime is 135570751. The next prime is 135570793. The reversal of 135570771 is 177075531.

It is a happy number.

135570771 is a `hidden beast` number, since 13 + 5 + 570 + 7 + 71 = 666.

It is not a de Polignac number, because 135570771 - 2⁵ = 135570739 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (135570751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1075896 + ... + 1076021.

It is an arithmetic number, because the mean of its divisors is an integer number (18649956).

Almost surely, 2^135570771 is an apocalyptic number.

135570771 is a deficient number, since it is larger than the sum of its proper divisors (88228701).

135570771 is a wasteful number, since it uses less digits than its factorization.

135570771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151930 (or 2151927 counting only the distinct ones).

The product of its (nonzero) digits is 25725, while the sum is 36.

The square root of 135570771 is about 11643.4862047413. The cubic root of 135570771 is about 513.7147339353.

The spelling of 135570771 in words is "one hundred thirty-five million, five hundred seventy thousand, seven hundred seventy-one".