135779 has 12 divisors (see below), whose sum is σ = 168264. Its totient is φ = 108864.

The previous prime is 135757. The next prime is 135781. The reversal of 135779 is 977531.

It is a de Polignac number, because none of the positive numbers 2^k-135779 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a plaindrome in base 10 and base 12.

It is not an unprimeable number, because it can be changed into a prime (135719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752 + ... + 914.

It is an arithmetic number, because the mean of its divisors is an integer number (14022).

2¹³⁵⁷⁷⁹ is an apocalyptic number.

135779 is a deficient number, since it is larger than the sum of its proper divisors (32485).

135779 is a wasteful number, since it uses less digits than its factorization.

135779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 187 counting only the distinct ones).

The product of its digits is 6615, while the sum is 32.

The square root of 135779 is about 368.4820212711. The cubic root of 135779 is about 51.3977611605.

The spelling of 135779 in words is "one hundred thirty-five thousand, seven hundred seventy-nine".