649214565 has 8 divisors (see below), whose sum is σ = 1038743328. Its totient is φ = 346247760.

The previous prime is 649214549. The next prime is 649214609. The reversal of 649214565 is 565412946.

649214565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 649214565 - 2⁴ = 649214549 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21640471 + ... + 21640500.

It is an arithmetic number, because the mean of its divisors is an integer number (129842916).

Almost surely, 2^649214565 is an apocalyptic number.

It is an amenable number.

649214565 is a deficient number, since it is larger than the sum of its proper divisors (389528763).

649214565 is a wasteful number, since it uses less digits than its factorization.

649214565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43280979.

The product of its digits is 259200, while the sum is 42.

The square root of 649214565 is about 25479.6892641963. The cubic root of 649214565 is about 865.8900547040.

The spelling of 649214565 in words is "six hundred forty-nine million, two hundred fourteen thousand, five hundred sixty-five".