223401229 has 2 divisors, whose sum is σ = 223401230. Its totient is φ = 223401228.

The previous prime is 223401173. The next prime is 223401253. The reversal of 223401229 is 922104322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136352329 + 87048900 = 11677^2 + 9330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223401229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223404229) 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, 111700614 + 111700615.

It is an arithmetic number, because the mean of its divisors is an integer number (111700615).

Almost surely, 2^223401229 is an apocalyptic number.

It is an amenable number.

223401229 is a deficient number, since it is larger than the sum of its proper divisors (1).

223401229 is an equidigital number, since it uses as much as digits as its factorization.

223401229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 223401229 is about 14946.6126262776. The cubic root of 223401229 is about 606.7761741632.

The spelling of 223401229 in words is "two hundred twenty-three million, four hundred one thousand, two hundred twenty-nine".