2202149 has 2 divisors, whose sum is σ = 2202150.
Its totient is φ = 2202148.
The previous prime is 2202139. The next prime is 2202169. The reversal of 2202149 is 9412022.
It is an a-pointer prime, because the next prime (2202169) can be obtained adding 2202149 to its sum of digits (20).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1188100 + 1014049 = 1090^2 + 1007^2
It is a cyclic number.
It is not a de Polignac number, because 2202149 - 24 = 2202133 is a prime.
It is a Sophie Germain prime.
It is an Ulam number.
It is a Curzon number.
It is equal to p162812 and since 2202149 and 162812 have the same sum of digits, it is a Honaker prime.
It is a self number, because there is not a number n which added to its sum of digits gives 2202149.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2202139) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101074 + 1101075.
It is an arithmetic number, because the mean of its divisors is an integer number (1101075).
22202149 is an apocalyptic number.
It is an amenable number.
2202149 is a deficient number, since it is larger than the sum of its proper divisors (1).
2202149 is an equidigital number, since it uses as much as digits as its factorization.
2202149 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 288, while the sum is 20.
The square root of 2202149 is about 1483.9639483492.
The cubic root of 2202149 is about 130.1014789496.
The spelling of 2202149 in words is "two million, two hundred two thousand, one hundred forty-nine".