2226149 has 2 divisors, whose sum is σ = 2226150. Its totient is φ = 2226148.

The previous prime is 2226137. The next prime is 2226151. The reversal of 2226149 is 9416222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 422500 = 1343^2 + 650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2226149 is a prime.

Together with 2226151, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is equal to p₁₆₄₄₃₈ and since 2226149 and 164438 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2226199) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113074 + 1113075.

It is an arithmetic number, because the mean of its divisors is an integer number (1113075).

2^2226149 is an apocalyptic number.

It is an amenable number.

2226149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2226149 is an equidigital number, since it uses as much as digits as its factorization.

2226149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 2226149 is about 1492.0284849828. The cubic root of 2226149 is about 130.5724068854.

The spelling of 2226149 in words is "two million, two hundred twenty-six thousand, one hundred forty-nine".