135771158 has 4 divisors (see below), whose sum is σ = 203656740. Its totient is φ = 67885578.

The previous prime is 135771149. The next prime is 135771161. The reversal of 135771158 is 851177531.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33942788 + ... + 33942791.

It is an arithmetic number, because the mean of its divisors is an integer number (50914185).

Almost surely, 2^135771158 is an apocalyptic number.

135771158 is a deficient number, since it is larger than the sum of its proper divisors (67885582).

135771158 is an equidigital number, since it uses as much as digits as its factorization.

135771158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67885581.

The product of its digits is 29400, while the sum is 38.

The square root of 135771158 is about 11652.0881390419. The cubic root of 135771158 is about 513.9677163834.

The spelling of 135771158 in words is "one hundred thirty-five million, seven hundred seventy-one thousand, one hundred fifty-eight".