64105 has 4 divisors (see below), whose sum is σ = 76932. Its totient is φ = 51280.

The previous prime is 64091. The next prime is 64109. The reversal of 64105 is 50146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50146 = 2 ⋅25073.

It can be written as a sum of positive squares in 2 ways, for example, as 11664 + 52441 = 108^2 + 229^2 .

It is not a de Polignac number, because 64105 - 2⁷ = 63977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6406 + ... + 6415.

It is an arithmetic number, because the mean of its divisors is an integer number (19233).

2⁶⁴¹⁰⁵ is an apocalyptic number.

It is an amenable number.

64105 is a deficient number, since it is larger than the sum of its proper divisors (12827).

64105 is a wasteful number, since it uses less digits than its factorization.

64105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12826.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 64105 is about 253.1896522372. The cubic root of 64105 is about 40.0218630480.

It can be divided in two parts, 64 and 105, that added together give a square (169 = 13²).

The spelling of 64105 in words is "sixty-four thousand, one hundred five".