257061341 has 2 divisors, whose sum is σ = 257061342. Its totient is φ = 257061340.

The previous prime is 257061319. The next prime is 257061373. The reversal of 257061341 is 143160752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134073241 + 122988100 = 11579^2 + 11090^2 .

It is a cyclic number.

It is not a de Polignac number, because 257061341 - 2¹⁰ = 257060317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257061391) 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, 128530670 + 128530671.

It is an arithmetic number, because the mean of its divisors is an integer number (128530671).

Almost surely, 2^257061341 is an apocalyptic number.

It is an amenable number.

257061341 is a deficient number, since it is larger than the sum of its proper divisors (1).

257061341 is an equidigital number, since it uses as much as digits as its factorization.

257061341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 257061341 is about 16033.1326009610. The cubic root of 257061341 is about 635.8366972910.

The spelling of 257061341 in words is "two hundred fifty-seven million, sixty-one thousand, three hundred forty-one".