135179856 has 120 divisors (see below), whose sum is σ = 439882560. Its totient is φ = 37951488.

The previous prime is 135179791. The next prime is 135179861. The reversal of 135179856 is 658971531.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 58336 + ... + 60608.

It is an arithmetic number, because the mean of its divisors is an integer number (3665688).

Almost surely, 2^135179856 is an apocalyptic number.

135179856 is a gapful number since it is divisible by the number (16) 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 135179856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219941280).

135179856 is an abundant number, since it is smaller than the sum of its proper divisors (304702704).

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

135179856 is a wasteful number, since it uses less digits than its factorization.

135179856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353 (or 2344 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 135179856 is about 11626.6872323977. The cubic root of 135179856 is about 513.2204973034.

The spelling of 135179856 in words is "one hundred thirty-five million, one hundred seventy-nine thousand, eight hundred fifty-six".