1045410221 has 2 divisors, whose sum is σ = 1045410222. Its totient is φ = 1045410220.

The previous prime is 1045410193. The next prime is 1045410277. The reversal of 1045410221 is 1220145401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 634334596 + 411075625 = 25186^2 + 20275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045410221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1045410193 and 1045410202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045413221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522705110 + 522705111.

It is an arithmetic number, because the mean of its divisors is an integer number (522705111).

Almost surely, 2^1045410221 is an apocalyptic number.

It is an amenable number.

1045410221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045410221 is an equidigital number, since it uses as much as digits as its factorization.

1045410221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1045410221 is about 32332.8041004797. The cubic root of 1045410221 is about 1014.9132303056.

Adding to 1045410221 its reverse (1220145401), we get a palindrome (2265555622).

The spelling of 1045410221 in words is "one billion, forty-five million, four hundred ten thousand, two hundred twenty-one".