257795119 has 2 divisors, whose sum is σ = 257795120. Its totient is φ = 257795118.

The previous prime is 257795117. The next prime is 257795143. The reversal of 257795119 is 911597752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257795119 - 2¹ = 257795117 is a prime.

It is a super-2 number, since 2×257795119² = 132916646760448322, which contains 22 as substring.

Together with 257795117, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257795117) 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, 128897559 + 128897560.

It is an arithmetic number, because the mean of its divisors is an integer number (128897560).

Almost surely, 2^257795119 is an apocalyptic number.

257795119 is a deficient number, since it is larger than the sum of its proper divisors (1).

257795119 is an equidigital number, since it uses as much as digits as its factorization.

257795119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 198450, while the sum is 46.

The square root of 257795119 is about 16055.9994706029. Note that the first 3 decimals coincide. The cubic root of 257795119 is about 636.4411182026.

The spelling of 257795119 in words is "two hundred fifty-seven million, seven hundred ninety-five thousand, one hundred nineteen".