256112201 has 4 divisors (see below), whose sum is σ = 256162500. Its totient is φ = 256061904.

The previous prime is 256112189. The next prime is 256112203. The reversal of 256112201 is 102211652.

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 16605625 + 239506576 = 4075^2 + 15476^2 .

It is a cyclic number.

It is not a de Polignac number, because 256112201 - 2¹⁴ = 256095817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256112203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16526 + ... + 28023.

It is an arithmetic number, because the mean of its divisors is an integer number (64040625).

Almost surely, 2^256112201 is an apocalyptic number.

It is an amenable number.

256112201 is a deficient number, since it is larger than the sum of its proper divisors (50299).

256112201 is an equidigital number, since it uses as much as digits as its factorization.

256112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50298.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 256112201 is about 16003.5058971464. The cubic root of 256112201 is about 635.0531718139.

Adding to 256112201 its reverse (102211652), we get a palindrome (358323853).

The spelling of 256112201 in words is "two hundred fifty-six million, one hundred twelve thousand, two hundred one".