605163491 has 2 divisors, whose sum is σ = 605163492. Its totient is φ = 605163490.

The previous prime is 605163473. The next prime is 605163523. The reversal of 605163491 is 194361506.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605163491 is a prime.

It is not a weakly prime, because it can be changed into another prime (605163451) 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, 302581745 + 302581746.

It is an arithmetic number, because the mean of its divisors is an integer number (302581746).

Almost surely, 2^605163491 is an apocalyptic number.

605163491 is a deficient number, since it is larger than the sum of its proper divisors (1).

605163491 is an equidigital number, since it uses as much as digits as its factorization.

605163491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 605163491 is about 24600.0709551822. The cubic root of 605163491 is about 845.8452338694.

The spelling of 605163491 in words is "six hundred five million, one hundred sixty-three thousand, four hundred ninety-one".