135550856 has 40 divisors (see below), whose sum is σ = 296541870. Its totient is φ = 58084992.

The previous prime is 135550847. The next prime is 135550871. The reversal of 135550856 is 658055531.

It can be written as a sum of positive squares in only one way, i.e., 69388900 + 66161956 = 8330^2 + 8134^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15680 + ... + 22736.

Almost surely, 2^135550856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135550856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148270935).

135550856 is an abundant number, since it is smaller than the sum of its proper divisors (160991014).

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

135550856 is an frugal number, since it uses more digits than its factorization.

135550856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091 (or 7066 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The square root of 135550856 is about 11642.6309741398. The cubic root of 135550856 is about 513.6895782427.

The spelling of 135550856 in words is "one hundred thirty-five million, five hundred fifty thousand, eight hundred fifty-six".