257127103 has 2 divisors, whose sum is σ = 257127104. Its totient is φ = 257127102.

The previous prime is 257127077. The next prime is 257127107. The reversal of 257127103 is 301721752.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257127103 is a prime.

It is a super-2 number, since 2×257127103² = 132228694194345218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257127107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128563551 + 128563552.

It is an arithmetic number, because the mean of its divisors is an integer number (128563552).

Almost surely, 2^257127103 is an apocalyptic number.

257127103 is a deficient number, since it is larger than the sum of its proper divisors (1).

257127103 is an equidigital number, since it uses as much as digits as its factorization.

257127103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 257127103 is about 16035.1832855131. The cubic root of 257127103 is about 635.8909130508.

Adding to 257127103 its reverse (301721752), we get a palindrome (558848855).

The spelling of 257127103 in words is "two hundred fifty-seven million, one hundred twenty-seven thousand, one hundred three".