135235779 has 32 divisors (see below), whose sum is σ = 211900416. Its totient is φ = 75116160.

The previous prime is 135235739. The next prime is 135235783. The reversal of 135235779 is 977532531.

It is not a de Polignac number, because 135235779 - 2⁷ = 135235651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135235779.

It is not an unprimeable number, because it can be changed into a prime (135235739) 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 31 ways as a sum of consecutive naturals, for example, 178269 + ... + 179025.

It is an arithmetic number, because the mean of its divisors is an integer number (6621888).

Almost surely, 2^135235779 is an apocalyptic number.

135235779 is a deficient number, since it is larger than the sum of its proper divisors (76664637).

135235779 is a wasteful number, since it uses less digits than its factorization.

135235779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its digits is 198450, while the sum is 42.

The square root of 135235779 is about 11629.0919249957. The cubic root of 135235779 is about 513.2912595059.

The spelling of 135235779 in words is "one hundred thirty-five million, two hundred thirty-five thousand, seven hundred seventy-nine".