256112041 has 2 divisors, whose sum is σ = 256112042. Its totient is φ = 256112040.

The previous prime is 256112009. The next prime is 256112053. The reversal of 256112041 is 140211652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243360000 + 12752041 = 15600^2 + 3571^2 .

It is a cyclic number.

It is not a de Polignac number, because 256112041 - 2⁵ = 256112009 is a prime.

It is not a weakly prime, because it can be changed into another prime (256112081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128056020 + 128056021.

It is an arithmetic number, because the mean of its divisors is an integer number (128056021).

Almost surely, 2^256112041 is an apocalyptic number.

It is an amenable number.

256112041 is a deficient number, since it is larger than the sum of its proper divisors (1).

256112041 is an equidigital number, since it uses as much as digits as its factorization.

256112041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 256112041 is about 16003.5008982410. The cubic root of 256112041 is about 635.0530395691.

Adding to 256112041 its reverse (140211652), we get a palindrome (396323693).

The spelling of 256112041 in words is "two hundred fifty-six million, one hundred twelve thousand, forty-one".