8251 has 4 divisors (see below), whose sum is σ = 8512.
Its totient is φ = 7992.
The previous prime is 8243. The next prime is 8263. The reversal of 8251 is 1528.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 8251 - 23 = 8243 is a prime.
It is a Duffinian number.
It is a plaindrome in base 9.
It is a nialpdrome in base 11.
It is not an unprimeable number, because it can be changed into a prime (8221) 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, 75 + ... + 148.
It is an arithmetic number, because the mean of its divisors is an integer number (2128).
28251 is an apocalyptic number.
8251 is a deficient number, since it is larger than the sum of its proper divisors (261).
8251 is a wasteful number, since it uses less digits than its factorization.
8251 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 260.
The product of its digits is 80, while the sum is 16.
The square root of 8251 is about 90.8350152749.
The cubic root of 8251 is about 20.2070164823.
Adding to 8251 its reverse (1528), we get a palindrome (9779).
The spelling of 8251 in words is "eight thousand, two hundred fifty-one".