1008613 has 2 divisors, whose sum is σ = 1008614. Its totient is φ = 1008612.

The previous prime is 1008611. The next prime is 1008617. The reversal of 1008613 is 3168001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 675684 + 332929 = 822^2 + 577^2 .

It is a cyclic number.

It is not a de Polignac number, because 1008613 - 2¹ = 1008611 is a prime.

Together with 1008611, 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 (1008611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504306 + 504307.

It is an arithmetic number, because the mean of its divisors is an integer number (504307).

2^1008613 is an apocalyptic number.

It is an amenable number.

1008613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1008613 is an equidigital number, since it uses as much as digits as its factorization.

1008613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1008613 is about 1004.2972667492. The cubic root of 1008613 is about 100.2862796575.

The spelling of 1008613 in words is "one million, eight thousand, six hundred thirteen".