135771042 has 16 divisors (see below), whose sum is σ = 296227872. Its totient is φ = 41142720.

The previous prime is 135771007. The next prime is 135771043. The reversal of 135771042 is 240177531.

It is not an unprimeable number, because it can be changed into a prime (135771043) 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, 1028503 + ... + 1028634.

It is an arithmetic number, because the mean of its divisors is an integer number (18514242).

Almost surely, 2^135771042 is an apocalyptic number.

135771042 is an abundant number, since it is smaller than the sum of its proper divisors (160456830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135771042 is a wasteful number, since it uses less digits than its factorization.

135771042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057153.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 135771042 is about 11652.0831613922. The cubic root of 135771042 is about 513.9675700090.

It can be divided in two parts, 135 and 771042, that added together give a palindrome (771177).

The spelling of 135771042 in words is "one hundred thirty-five million, seven hundred seventy-one thousand, forty-two".