20239127 has 2 divisors, whose sum is σ = 20239128. Its totient is φ = 20239126.

The previous prime is 20239099. The next prime is 20239151. The reversal of 20239127 is 72193202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20239127 - 2¹² = 20235031 is a prime.

It is equal to p_1284812 and since 20239127 and 1284812 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 20239096 and 20239105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20239327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10119563 + 10119564.

It is an arithmetic number, because the mean of its divisors is an integer number (10119564).

Almost surely, 2^20239127 is an apocalyptic number.

20239127 is a deficient number, since it is larger than the sum of its proper divisors (1).

20239127 is an equidigital number, since it uses as much as digits as its factorization.

20239127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20239127 is about 4498.7917266751. The cubic root of 20239127 is about 272.5192961113.

The spelling of 20239127 in words is "twenty million, two hundred thirty-nine thousand, one hundred twenty-seven".