20165027 has 2 divisors, whose sum is σ = 20165028. Its totient is φ = 20165026.

The previous prime is 20165017. The next prime is 20165051. The reversal of 20165027 is 72056102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20165027 - 2¹⁰ = 20164003 is a prime.

It is a Chen prime.

It is equal to p_1280417 and since 20165027 and 1280417 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 = 20164993 and 20165011.

It is not a weakly prime, because it can be changed into another prime (20165017) 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, 10082513 + 10082514.

It is an arithmetic number, because the mean of its divisors is an integer number (10082514).

Almost surely, 2^20165027 is an apocalyptic number.

20165027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20165027 is an equidigital number, since it uses as much as digits as its factorization.

20165027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 20165027 is about 4490.5486301787. The cubic root of 20165027 is about 272.1863045644.

The spelling of 20165027 in words is "twenty million, one hundred sixty-five thousand, twenty-seven".