136560256 has 48 divisors (see below), whose sum is σ = 316485090. Its totient is φ = 58523136.

The previous prime is 136560251. The next prime is 136560287. The reversal of 136560256 is 652065631.

It can be written as a sum of positive squares in only one way, i.e., 131790400 + 4769856 = 11480^2 + 2184^2 .

It is not an unprimeable number, because it can be changed into a prime (136560251) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4615 + ... + 17158.

Almost surely, 2^136560256 is an apocalyptic number.

136560256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136560256 is an abundant number, since it is smaller than the sum of its proper divisors (179924834).

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

136560256 is an equidigital number, since it uses as much as digits as its factorization.

136560256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21801 (or 21782 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 136560256 is about 11685.8998797696. The cubic root of 136560256 is about 514.9615153320.

The spelling of 136560256 in words is "one hundred thirty-six million, five hundred sixty thousand, two hundred fifty-six".