1045544009 has 2 divisors, whose sum is σ = 1045544010. Its totient is φ = 1045544008.

The previous prime is 1045543981. The next prime is 1045544029. The reversal of 1045544009 is 9004455401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 707719609 + 337824400 = 26603^2 + 18380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045544009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1045544029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522772004 + 522772005.

It is an arithmetic number, because the mean of its divisors is an integer number (522772005).

Almost surely, 2^1045544009 is an apocalyptic number.

It is an amenable number.

1045544009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045544009 is an equidigital number, since it uses as much as digits as its factorization.

1045544009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1045544009 is about 32334.8729547527. The cubic root of 1045544009 is about 1014.9565234922.

The spelling of 1045544009 in words is "one billion, forty-five million, five hundred forty-four thousand, nine".