20010193 has 4 divisors (see below), whose sum is σ = 22868800. Its totient is φ = 17151588.

The previous prime is 20010187. The next prime is 20010197. The reversal of 20010193 is 39101002.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39101002 = 2 ⋅19550501.

It is a cyclic number.

It is not a de Polignac number, because 20010193 - 2¹⁷ = 19879121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429293 + ... + 1429306.

It is an arithmetic number, because the mean of its divisors is an integer number (5717200).

Almost surely, 2^20010193 is an apocalyptic number.

It is an amenable number.

20010193 is a deficient number, since it is larger than the sum of its proper divisors (2858607).

20010193 is an equidigital number, since it uses as much as digits as its factorization.

20010193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858606.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 20010193 is about 4473.2754218805. The cubic root of 20010193 is about 271.4878672591.

Adding to 20010193 its reverse (39101002), we get a palindrome (59111195).

The spelling of 20010193 in words is "twenty million, ten thousand, one hundred ninety-three".