1003253989 has 2 divisors, whose sum is σ = 1003253990. Its totient is φ = 1003253988.

The previous prime is 1003253987. The next prime is 1003254029. The reversal of 1003253989 is 9893523001.

It is an a-pointer prime, because the next prime (1003254029) can be obtained adding 1003253989 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 970820964 + 32433025 = 31158^2 + 5695^2 .

It is an emirp because it is prime and its reverse (9893523001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1003253989 - 2¹ = 1003253987 is a prime.

Together with 1003253987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1003253981) 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, 501626994 + 501626995.

It is an arithmetic number, because the mean of its divisors is an integer number (501626995).

Almost surely, 2^1003253989 is an apocalyptic number.

It is an amenable number.

1003253989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003253989 is an equidigital number, since it uses as much as digits as its factorization.

1003253989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 1003253989 is about 31674.1848987468. The cubic root of 1003253989 is about 1001.0834886284.

The spelling of 1003253989 in words is "one billion, three million, two hundred fifty-three thousand, nine hundred eighty-nine".