222986149 has 2 divisors, whose sum is σ = 222986150. Its totient is φ = 222986148.

The previous prime is 222986143. The next prime is 222986201. The reversal of 222986149 is 941689222.

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., 199317924 + 23668225 = 14118^2 + 4865^2 .

It is a cyclic number.

It is not a de Polignac number, because 222986149 - 2¹¹ = 222984101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222986143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111493074 + 111493075.

It is an arithmetic number, because the mean of its divisors is an integer number (111493075).

Almost surely, 2^222986149 is an apocalyptic number.

It is an amenable number.

222986149 is a deficient number, since it is larger than the sum of its proper divisors (1).

222986149 is an equidigital number, since it uses as much as digits as its factorization.

222986149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 222986149 is about 14932.7207500844. The cubic root of 222986149 is about 606.4001440005.

The spelling of 222986149 in words is "two hundred twenty-two million, nine hundred eighty-six thousand, one hundred forty-nine".