256134341 has 4 divisors (see below), whose sum is σ = 256192332. Its totient is φ = 256076352.

The previous prime is 256134331. The next prime is 256134343. The reversal of 256134341 is 143431652.

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 80174116 + 175960225 = 8954^2 + 13265^2 .

It is a cyclic number.

It is not a de Polignac number, because 256134341 - 2²² = 251940037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256134343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21770 + ... + 31403.

It is an arithmetic number, because the mean of its divisors is an integer number (64048083).

Almost surely, 2^256134341 is an apocalyptic number.

It is an amenable number.

256134341 is a deficient number, since it is larger than the sum of its proper divisors (57991).

256134341 is an equidigital number, since it uses as much as digits as its factorization.

256134341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57990.

The product of its digits is 8640, while the sum is 29.

The square root of 256134341 is about 16004.1976056283. The cubic root of 256134341 is about 635.0714706585.

Adding to 256134341 its reverse (143431652), we get a palindrome (399565993).

The spelling of 256134341 in words is "two hundred fifty-six million, one hundred thirty-four thousand, three hundred forty-one".