64115 has 4 divisors (see below), whose sum is σ = 76944. Its totient is φ = 51288.

The previous prime is 64109. The next prime is 64123. The reversal of 64115 is 51146.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64115 is a prime.

It is a super-2 number, since 2×64115² = 8221466450, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 64093 and 64102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6407 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (19236).

2⁶⁴¹¹⁵ is an apocalyptic number.

64115 is a deficient number, since it is larger than the sum of its proper divisors (12829).

64115 is a wasteful number, since it uses less digits than its factorization.

64115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12828.

The product of its digits is 120, while the sum is 17.

The square root of 64115 is about 253.2093995096. The cubic root of 64115 is about 40.0239439976.

It can be divided in two parts, 641 and 15, that added together give a palindrome (656).

The spelling of 64115 in words is "sixty-four thousand, one hundred fifteen".