649150223 has 4 divisors (see below), whose sum is σ = 649209600. Its totient is φ = 649090848.

The previous prime is 649150217. The next prime is 649150259. The reversal of 649150223 is 322051946.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 322051946 = 2 ⋅161025973.

It is a cyclic number.

It is not a de Polignac number, because 649150223 - 2¹⁴ = 649133839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 649150223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649150283) 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 in 3 ways as a sum of consecutive naturals, for example, 8015 + ... + 36912.

It is an arithmetic number, because the mean of its divisors is an integer number (162302400).

Almost surely, 2^649150223 is an apocalyptic number.

649150223 is a deficient number, since it is larger than the sum of its proper divisors (59377).

649150223 is a wasteful number, since it uses less digits than its factorization.

649150223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59376.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 649150223 is about 25478.4266193970. The cubic root of 649150223 is about 865.8614483739.

The spelling of 649150223 in words is "six hundred forty-nine million, one hundred fifty thousand, two hundred twenty-three".