223422149 has 2 divisors, whose sum is σ = 223422150. Its totient is φ = 223422148.

The previous prime is 223422127. The next prime is 223422181. The reversal of 223422149 is 941224322.

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., 203262049 + 20160100 = 14257^2 + 4490^2 .

It is a cyclic number.

It is not a de Polignac number, because 223422149 - 2¹² = 223418053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223422649) 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, 111711074 + 111711075.

It is an arithmetic number, because the mean of its divisors is an integer number (111711075).

Almost surely, 2^223422149 is an apocalyptic number.

It is an amenable number.

223422149 is a deficient number, since it is larger than the sum of its proper divisors (1).

223422149 is an equidigital number, since it uses as much as digits as its factorization.

223422149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 223422149 is about 14947.3124340130. The cubic root of 223422149 is about 606.7951137208.

The spelling of 223422149 in words is "two hundred twenty-three million, four hundred twenty-two thousand, one hundred forty-nine".