648183167 has 2 divisors, whose sum is σ = 648183168. Its totient is φ = 648183166.

The previous prime is 648183143. The next prime is 648183169. The reversal of 648183167 is 761381846.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648183167 is a prime.

Together with 648183169, 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 (648183169) 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, 324091583 + 324091584.

It is an arithmetic number, because the mean of its divisors is an integer number (324091584).

Almost surely, 2^648183167 is an apocalyptic number.

648183167 is a deficient number, since it is larger than the sum of its proper divisors (1).

648183167 is an equidigital number, since it uses as much as digits as its factorization.

648183167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 648183167 is about 25459.4416081736. The cubic root of 648183167 is about 865.4312692339.

The spelling of 648183167 in words is "six hundred forty-eight million, one hundred eighty-three thousand, one hundred sixty-seven".