649183 has 2 divisors, whose sum is σ = 649184. Its totient is φ = 649182.

The previous prime is 649157. The next prime is 649217. The reversal of 649183 is 381946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 649183 - 2⁵ = 649151 is a prime.

649183 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (649123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324591 + 324592.

It is an arithmetic number, because the mean of its divisors is an integer number (324592).

2⁶⁴⁹¹⁸³ is an apocalyptic number.

649183 is a deficient number, since it is larger than the sum of its proper divisors (1).

649183 is an equidigital number, since it uses as much as digits as its factorization.

649183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 649183 is about 805.7189336239. The cubic root of 649183 is about 86.5876021202.

The spelling of 649183 in words is "six hundred forty-nine thousand, one hundred eighty-three".