1045201009 has 2 divisors, whose sum is σ = 1045201010. Its totient is φ = 1045201008.

The previous prime is 1045201007. The next prime is 1045201037. The reversal of 1045201009 is 9001025401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 944640225 + 100560784 = 30735^2 + 10028^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045201009 - 2¹ = 1045201007 is a prime.

Together with 1045201007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1045201007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522600504 + 522600505.

It is an arithmetic number, because the mean of its divisors is an integer number (522600505).

Almost surely, 2^1045201009 is an apocalyptic number.

It is an amenable number.

1045201009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045201009 is an equidigital number, since it uses as much as digits as its factorization.

1045201009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1045201009 is about 32329.5686485298. The cubic root of 1045201009 is about 1014.8455228519.

The spelling of 1045201009 in words is "one billion, forty-five million, two hundred one thousand, nine".