8451 has 8 divisors (see below), whose sum is σ = 12560. Its totient is φ = 5616.

The previous prime is 8447. The next prime is 8461. The reversal of 8451 is 1548.

It is not a de Polignac number, because 8451 - 2² = 8447 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130 + ... + 183.

It is an arithmetic number, because the mean of its divisors is an integer number (1570).

8451 is a deficient number, since it is larger than the sum of its proper divisors (4109).

8451 is a wasteful number, since it uses less digits than its factorization.

8451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 316 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 8451 is about 91.9293206763. The cubic root of 8451 is about 20.3689840093.

Adding to 8451 its reverse (1548), we get a palindrome (9999).

Subtracting from 8451 its reverse (1548), we obtain a triangular number (6903 = T₁₁₇).

The spelling of 8451 in words is "eight thousand, four hundred fifty-one".