1043221349 has 2 divisors, whose sum is σ = 1043221350. Its totient is φ = 1043221348.

The previous prime is 1043221297. The next prime is 1043221369. The reversal of 1043221349 is 9431223401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1033172449 + 10048900 = 32143^2 + 3170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043221349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043221369) 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, 521610674 + 521610675.

It is an arithmetic number, because the mean of its divisors is an integer number (521610675).

Almost surely, 2^1043221349 is an apocalyptic number.

It is an amenable number.

1043221349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043221349 is an equidigital number, since it uses as much as digits as its factorization.

1043221349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1043221349 is about 32298.9372735389. The cubic root of 1043221349 is about 1014.2043961474.

The spelling of 1043221349 in words is "one billion, forty-three million, two hundred twenty-one thousand, three hundred forty-nine".