1006009091 has 2 divisors, whose sum is σ = 1006009092. Its totient is φ = 1006009090.

The previous prime is 1006009079. The next prime is 1006009099. The reversal of 1006009091 is 1909006001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1006009091 - 2¹⁸ = 1005746947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1006009091.

It is not a weakly prime, because it can be changed into another prime (1006009099) 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, 503004545 + 503004546.

It is an arithmetic number, because the mean of its divisors is an integer number (503004546).

Almost surely, 2^1006009091 is an apocalyptic number.

1006009091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006009091 is an equidigital number, since it uses as much as digits as its factorization.

1006009091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 1006009091 is about 31717.6463660215. The cubic root of 1006009091 is about 1001.9990315434. Note that the first 3 decimals are identical.

The spelling of 1006009091 in words is "one billion, six million, nine thousand, ninety-one".