9451 has 4 divisors (see below), whose sum is σ = 10192. Its totient is φ = 8712.

The previous prime is 9439. The next prime is 9461. The reversal of 9451 is 1549.

9451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9451 - 2⁵ = 9419 is a prime.

9451 is a lucky number.

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9421) 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, 351 + ... + 376.

It is an arithmetic number, because the mean of its divisors is an integer number (2548).

2⁹⁴⁵¹ is an apocalyptic number.

9451 is a deficient number, since it is larger than the sum of its proper divisors (741).

9451 is a wasteful number, since it uses less digits than its factorization.

9451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 180, while the sum is 19.

The square root of 9451 is about 97.2162537851. The cubic root of 9451 is about 21.1426419158.

It can be divided in two parts, 945 and 1, that added together give a triangular number (946 = T₄₃).

The spelling of 9451 in words is "nine thousand, four hundred fifty-one".