649235183 has 2 divisors, whose sum is σ = 649235184. Its totient is φ = 649235182.

The previous prime is 649235177. The next prime is 649235231. The reversal of 649235183 is 381532946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 649235183 - 2¹⁴ = 649218799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 649235183.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (649231183) 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, 324617591 + 324617592.

It is an arithmetic number, because the mean of its divisors is an integer number (324617592).

Almost surely, 2^649235183 is an apocalyptic number.

649235183 is a deficient number, since it is larger than the sum of its proper divisors (1).

649235183 is an equidigital number, since it uses as much as digits as its factorization.

649235183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 649235183 is about 25480.0938577549. The cubic root of 649235183 is about 865.8992210275.

The spelling of 649235183 in words is "six hundred forty-nine million, two hundred thirty-five thousand, one hundred eighty-three".