222847349 has 2 divisors, whose sum is σ = 222847350. Its totient is φ = 222847348.

The previous prime is 222847343. The next prime is 222847357. The reversal of 222847349 is 943748222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212722225 + 10125124 = 14585^2 + 3182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222847349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222847343) 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, 111423674 + 111423675.

It is an arithmetic number, because the mean of its divisors is an integer number (111423675).

Almost surely, 2^222847349 is an apocalyptic number.

It is an amenable number.

222847349 is a deficient number, since it is larger than the sum of its proper divisors (1).

222847349 is an equidigital number, since it uses as much as digits as its factorization.

222847349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 222847349 is about 14928.0725145613. The cubic root of 222847349 is about 606.2742979031.

The spelling of 222847349 in words is "two hundred twenty-two million, eight hundred forty-seven thousand, three hundred forty-nine".