48145 has 4 divisors (see below), whose sum is σ = 57780. Its totient is φ = 38512.
The previous prime is 48131. The next prime is 48157. The reversal of 48145 is 54184.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 36481 + 11664 = 191^2 + 108^2 .
It is a cyclic number.
It is not a de Polignac number, because 48145 - 27 = 48017 is a prime.
It is a plaindrome in base 14.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4810 + ... + 4819.
It is an arithmetic number, because the mean of its divisors is an integer number (14445).
248145 is an apocalyptic number.
It is an amenable number.
48145 is a deficient number, since it is larger than the sum of its proper divisors (9635).
48145 is an equidigital number, since it uses as much as digits as its factorization.
48145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9634.
The product of its digits is 640, while the sum is 22.
The square root of 48145 is about 219.4196891803. The cubic root of 48145 is about 36.3789698592.
The spelling of 48145 in words is "forty-eight thousand, one hundred forty-five".
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