257834141 has 2 divisors, whose sum is σ = 257834142. Its totient is φ = 257834140.

The previous prime is 257834131. The next prime is 257834153. The reversal of 257834141 is 141438752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184389241 + 73444900 = 13579^2 + 8570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257834141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257834131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128917070 + 128917071.

It is an arithmetic number, because the mean of its divisors is an integer number (128917071).

Almost surely, 2^257834141 is an apocalyptic number.

It is an amenable number.

257834141 is a deficient number, since it is larger than the sum of its proper divisors (1).

257834141 is an equidigital number, since it uses as much as digits as its factorization.

257834141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 35.

The square root of 257834141 is about 16057.2146090161. The cubic root of 257834141 is about 636.4732289119.

The spelling of 257834141 in words is "two hundred fifty-seven million, eight hundred thirty-four thousand, one hundred forty-one".