135779712 has 64 divisors (see below), whose sum is σ = 362059200. Its totient is φ = 45085184.

The previous prime is 135779671. The next prime is 135779729. The reversal of 135779712 is 217977531.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×135779712² = 36872260381605888, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 132739 + ... + 133757.

It is an arithmetic number, because the mean of its divisors is an integer number (5657175).

Almost surely, 2^135779712 is an apocalyptic number.

135779712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135779712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181029600).

135779712 is an abundant number, since it is smaller than the sum of its proper divisors (226279488).

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

135779712 is a wasteful number, since it uses less digits than its factorization.

135779712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383 (or 1371 counting only the distinct ones).

The product of its digits is 92610, while the sum is 42.

The square root of 135779712 is about 11652.4551919327. The cubic root of 135779712 is about 513.9785100051.

The spelling of 135779712 in words is "one hundred thirty-five million, seven hundred seventy-nine thousand, seven hundred twelve".