60815 has 4 divisors (see below), whose sum is σ = 72984. Its totient is φ = 48648.
The previous prime is 60811. The next prime is 60821. The reversal of 60815 is 51806.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51806 = 2 ⋅25903.
It is a cyclic number.
It is not a de Polignac number, because 60815 - 22 = 60811 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 60815.
It is not an unprimeable number, because it can be changed into a prime (60811) by changing a digit.
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, 6077 + ... + 6086.
It is an arithmetic number, because the mean of its divisors is an integer number (18246).
260815 is an apocalyptic number.
60815 is a deficient number, since it is larger than the sum of its proper divisors (12169).
60815 is a wasteful number, since it uses less digits than its factorization.
60815 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12168.
The product of its (nonzero) digits is 240, while the sum is 20.
The square root of 60815 is about 246.6069747594. The cubic root of 60815 is about 39.3251363429.
Subtracting from 60815 its reverse (51806), we obtain a palindrome (9009).
The spelling of 60815 in words is "sixty thousand, eight hundred fifteen".
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