64450105 has 8 divisors (see below), whose sum is σ = 77510664. Its totient is φ = 51446400.

The previous prime is 64450097. The next prime is 64450157. The reversal of 64450105 is 50105446.

It can be written as a sum of positive squares in 4 ways, for example, as 514089 + 63936016 = 717^2 + 7996^2 .

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

It is not a de Polignac number, because 64450105 - 2³ = 64450097 is a prime.

It is a super-2 number, since 2×64450105² = 8307632069022050, which contains 22 as substring.

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 64450105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11676 + ... + 16285.

It is an arithmetic number, because the mean of its divisors is an integer number (9688833).

Almost surely, 2^64450105 is an apocalyptic number.

It is an amenable number.

64450105 is a deficient number, since it is larger than the sum of its proper divisors (13060559).

64450105 is a wasteful number, since it uses less digits than its factorization.

64450105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28427.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 64450105 is about 8028.0822741175. The cubic root of 64450105 is about 400.9355290079.

The spelling of 64450105 in words is "sixty-four million, four hundred fifty thousand, one hundred five".