1043465221 has 2 divisors, whose sum is σ = 1043465222. Its totient is φ = 1043465220.

The previous prime is 1043465179. The next prime is 1043465251. The reversal of 1043465221 is 1225643401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 984390625 + 59074596 = 31375^2 + 7686^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043465221 - 2¹⁹ = 1042940933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1043465221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043465251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521732610 + 521732611.

It is an arithmetic number, because the mean of its divisors is an integer number (521732611).

Almost surely, 2^1043465221 is an apocalyptic number.

It is an amenable number.

1043465221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043465221 is an equidigital number, since it uses as much as digits as its factorization.

1043465221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1043465221 is about 32302.7122855032. The cubic root of 1043465221 is about 1014.2834195761.

The spelling of 1043465221 in words is "one billion, forty-three million, four hundred sixty-five thousand, two hundred twenty-one".