10165021 has 2 divisors, whose sum is σ = 10165022. Its totient is φ = 10165020.

The previous prime is 10164991. The next prime is 10165027. The reversal of 10165021 is 12056101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8328996 + 1836025 = 2886^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 10165021 - 2⁹ = 10164509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10164986 and 10165004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10165027) 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, 5082510 + 5082511.

It is an arithmetic number, because the mean of its divisors is an integer number (5082511).

Almost surely, 2^10165021 is an apocalyptic number.

It is an amenable number.

10165021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10165021 is an equidigital number, since it uses as much as digits as its factorization.

10165021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 10165021 is about 3188.2630067170. The cubic root of 10165021 is about 216.6220991830.

The spelling of 10165021 in words is "ten million, one hundred sixty-five thousand, twenty-one".