1002748189 has 2 divisors, whose sum is σ = 1002748190. Its totient is φ = 1002748188.

The previous prime is 1002748183. The next prime is 1002748217. The reversal of 1002748189 is 9818472001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755315289 + 247432900 = 27483^2 + 15730^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002748189 - 2¹¹ = 1002746141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002748183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501374094 + 501374095.

It is an arithmetic number, because the mean of its divisors is an integer number (501374095).

Almost surely, 2^1002748189 is an apocalyptic number.

It is an amenable number.

1002748189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002748189 is an equidigital number, since it uses as much as digits as its factorization.

1002748189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 1002748189 is about 31666.1994719922. The cubic root of 1002748189 is about 1000.9152251075.

The spelling of 1002748189 in words is "one billion, two million, seven hundred forty-eight thousand, one hundred eighty-nine".