1000223429 has 2 divisors, whose sum is σ = 1000223430. Its totient is φ = 1000223428.

The previous prime is 1000223423. The next prime is 1000223431. The reversal of 1000223429 is 9243220001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 965531329 + 34692100 = 31073^2 + 5890^2 .

It is an emirp because it is prime and its reverse (9243220001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000223429 is a prime.

Together with 1000223431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000223423) 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, 500111714 + 500111715.

It is an arithmetic number, because the mean of its divisors is an integer number (500111715).

Almost surely, 2^1000223429 is an apocalyptic number.

It is an amenable number.

1000223429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000223429 is an equidigital number, since it uses as much as digits as its factorization.

1000223429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1000223429 is about 31626.3091270543. The cubic root of 1000223429 is about 1000.0744707873.

The spelling of 1000223429 in words is "one billion, two hundred twenty-three thousand, four hundred twenty-nine".