1001152109 has 2 divisors, whose sum is σ = 1001152110. Its totient is φ = 1001152108.

The previous prime is 1001152093. The next prime is 1001152111. The reversal of 1001152109 is 9012511001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 998749609 + 2402500 = 31603^2 + 1550^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001152109 - 2⁴ = 1001152093 is a prime.

Together with 1001152111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001152129) 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, 500576054 + 500576055.

It is an arithmetic number, because the mean of its divisors is an integer number (500576055).

Almost surely, 2^1001152109 is an apocalyptic number.

It is an amenable number.

1001152109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001152109 is an equidigital number, since it uses as much as digits as its factorization.

1001152109 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 20.

The square root of 1001152109 is about 31640.9878006361. The cubic root of 1001152109 is about 1000.3838889438.

The spelling of 1001152109 in words is "one billion, one million, one hundred fifty-two thousand, one hundred nine".