20256127 has 2 divisors, whose sum is σ = 20256128. Its totient is φ = 20256126.

The previous prime is 20256073. The next prime is 20256143. The reversal of 20256127 is 72165202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20256127 - 2⁷ = 20255999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20256157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10128063 + 10128064.

It is an arithmetic number, because the mean of its divisors is an integer number (10128064).

Almost surely, 2^20256127 is an apocalyptic number.

20256127 is a deficient number, since it is larger than the sum of its proper divisors (1).

20256127 is an equidigital number, since it uses as much as digits as its factorization.

20256127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20256127 is about 4500.6807262902. The cubic root of 20256127 is about 272.5955762709.

The spelling of 20256127 in words is "twenty million, two hundred fifty-six thousand, one hundred twenty-seven".