2205149 has 2 divisors, whose sum is σ = 2205150. Its totient is φ = 2205148.

The previous prime is 2205139. The next prime is 2205157. The reversal of 2205149 is 9415022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2059225 + 145924 = 1435^2 + 382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2205149 is a prime.

It is a super-2 number, since 2×2205149² = 9725364224402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2205139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102574 + 1102575.

It is an arithmetic number, because the mean of its divisors is an integer number (1102575).

2^2205149 is an apocalyptic number.

It is an amenable number.

2205149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205149 is an equidigital number, since it uses as much as digits as its factorization.

2205149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2205149 is about 1484.9744105539. The cubic root of 2205149 is about 130.1605314680.

The spelling of 2205149 in words is "two million, two hundred five thousand, one hundred forty-nine".