256241441 has 2 divisors, whose sum is σ = 256241442. Its totient is φ = 256241440.

The previous prime is 256241341. The next prime is 256241449. The reversal of 256241441 is 144142652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190550416 + 65691025 = 13804^2 + 8105^2 .

It is a cyclic number.

It is not a de Polignac number, because 256241441 - 2¹⁰ = 256240417 is a prime.

It is not a weakly prime, because it can be changed into another prime (256241449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128120720 + 128120721.

It is an arithmetic number, because the mean of its divisors is an integer number (128120721).

Almost surely, 2^256241441 is an apocalyptic number.

It is an amenable number.

256241441 is a deficient number, since it is larger than the sum of its proper divisors (1).

256241441 is an equidigital number, since it uses as much as digits as its factorization.

256241441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 29.

The square root of 256241441 is about 16007.5432531041. The cubic root of 256241441 is about 635.1599745745.

The spelling of 256241441 in words is "two hundred fifty-six million, two hundred forty-one thousand, four hundred forty-one".