10168021 has 4 divisors (see below), whose sum is σ = 10703200. Its totient is φ = 9632844.

The previous prime is 10168019. The next prime is 10168033. The reversal of 10168021 is 12086101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10168021 - 2¹ = 10168019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 535159 = 10168021 / (1 + 0 + 1 + 6 + 8 + 0 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10168021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10168061) 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 in 3 ways as a sum of consecutive naturals, for example, 267561 + ... + 267598.

It is an arithmetic number, because the mean of its divisors is an integer number (2675800).

Almost surely, 2^10168021 is an apocalyptic number.

It is an amenable number.

10168021 is a deficient number, since it is larger than the sum of its proper divisors (535179).

10168021 is an equidigital number, since it uses as much as digits as its factorization.

10168021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535178.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 10168021 is about 3188.7334476246. The cubic root of 10168021 is about 216.6434076282.

The spelling of 10168021 in words is "ten million, one hundred sixty-eight thousand, twenty-one".