136256260 has 72 divisors (see below), whose sum is σ = 334767384. Its totient is φ = 46448640.

The previous prime is 136256251. The next prime is 136256273. The reversal of 136256260 is 62652631.

It can be written as a sum of positive squares in 4 ways, for example, as 43480836 + 92775424 = 6594^2 + 9632^2 .

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, 251590 + ... + 252130.

It is an arithmetic number, because the mean of its divisors is an integer number (4649547).

Almost surely, 2^136256260 is an apocalyptic number.

136256260 is a gapful number since it is divisible by the number (10) 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 136256260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167383692).

136256260 is an abundant number, since it is smaller than the sum of its proper divisors (198511124).

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

136256260 is a wasteful number, since it uses less digits than its factorization.

136256260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 136256260 is about 11672.8856757873. The cubic root of 136256260 is about 514.5791138156.

The spelling of 136256260 in words is "one hundred thirty-six million, two hundred fifty-six thousand, two hundred sixty".