20122093 has 2 divisors, whose sum is σ = 20122094.
Its totient is φ = 20122092.
The previous prime is 20122087. The next prime is 20122133. The reversal of 20122093 is 39022102.
Adding to 20122093 its reverse (39022102), we get a palindrome (59144195).
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 19342404 + 779689 = 4398^2 + 883^2
It is a cyclic number.
It is not a de Polignac number, because 20122093 - 25 = 20122061 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 20122093.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20122693) 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, 10061046 + 10061047.
It is an arithmetic number, because the mean of its divisors is an integer number (10061047).
Almost surely, 220122093 is an apocalyptic number.
It is an amenable number.
20122093 is a deficient number, since it is larger than the sum of its proper divisors (1).
20122093 is an equidigital number, since it uses as much as digits as its factorization.
20122093 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 19.
The square root of 20122093 is about 4485.7655979777.
The cubic root of 20122093 is about 271.9929938002.
The spelling of 20122093 in words is "twenty million, one hundred twenty-two thousand, ninety-three".