1634045009 has 2 divisors, whose sum is σ = 1634045010. Its totient is φ = 1634045008.

The previous prime is 1634044967. The next prime is 1634045029. The reversal of 1634045009 is 9005404361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1501795009 + 132250000 = 38753^2 + 11500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1634045009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1634045029) 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, 817022504 + 817022505.

It is an arithmetic number, because the mean of its divisors is an integer number (817022505).

Almost surely, 2^1634045009 is an apocalyptic number.

It is an amenable number.

1634045009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634045009 is an equidigital number, since it uses as much as digits as its factorization.

1634045009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1634045009 is about 40423.3225873381. The cubic root of 1634045009 is about 1177.8446264158.

The spelling of 1634045009 in words is "one billion, six hundred thirty-four million, forty-five thousand, nine".