136555201 has 4 divisors (see below), whose sum is σ = 136635732. Its totient is φ = 136474672.

The previous prime is 136555157. The next prime is 136555207. The reversal of 136555201 is 102555631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87890625 + 48664576 = 9375^2 + 6976^2 .

It is a cyclic number.

It is not a de Polignac number, because 136555201 - 2⁹ = 136554689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136555201.

It is not an unprimeable number, because it can be changed into a prime (136555207) 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 3 ways as a sum of consecutive naturals, for example, 37666 + ... + 41131.

It is an arithmetic number, because the mean of its divisors is an integer number (34158933).

Almost surely, 2^136555201 is an apocalyptic number.

It is an amenable number.

136555201 is a deficient number, since it is larger than the sum of its proper divisors (80531).

136555201 is an equidigital number, since it uses as much as digits as its factorization.

136555201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80530.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 136555201 is about 11685.6835914721. The cubic root of 136555201 is about 514.9551612076.

The spelling of 136555201 in words is "one hundred thirty-six million, five hundred fifty-five thousand, two hundred one".