256329841 has 2 divisors, whose sum is σ = 256329842. Its totient is φ = 256329840.

The previous prime is 256329781. The next prime is 256329863. The reversal of 256329841 is 148923652.

256329841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250905600 + 5424241 = 15840^2 + 2329^2 .

It is a cyclic number.

It is not a de Polignac number, because 256329841 - 2⁷ = 256329713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256329794 and 256329803.

It is not a weakly prime, because it can be changed into another prime (256321841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128164920 + 128164921.

It is an arithmetic number, because the mean of its divisors is an integer number (128164921).

Almost surely, 2^256329841 is an apocalyptic number.

It is an amenable number.

256329841 is a deficient number, since it is larger than the sum of its proper divisors (1).

256329841 is an equidigital number, since it uses as much as digits as its factorization.

256329841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 256329841 is about 16010.3042132247. The cubic root of 256329841 is about 635.2330068495.

The spelling of 256329841 in words is "two hundred fifty-six million, three hundred twenty-nine thousand, eight hundred forty-one".