1151002009 has 2 divisors, whose sum is σ = 1151002010. Its totient is φ = 1151002008.

The previous prime is 1151001997. The next prime is 1151002049. The reversal of 1151002009 is 9002001511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 803552409 + 347449600 = 28347^2 + 18640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151002009 - 2¹⁷ = 1150870937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1151002049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575501004 + 575501005.

It is an arithmetic number, because the mean of its divisors is an integer number (575501005).

Almost surely, 2^1151002009 is an apocalyptic number.

It is an amenable number.

1151002009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151002009 is an equidigital number, since it uses as much as digits as its factorization.

1151002009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 1151002009 is about 33926.4205155805. The cubic root of 1151002009 is about 1047.9937530584.

The spelling of 1151002009 in words is "one billion, one hundred fifty-one million, two thousand, nine".