11451 has 8 divisors (see below), whose sum is σ = 16704. Its totient is φ = 6920.

The previous prime is 11447. The next prime is 11467. The reversal of 11451 is 15411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11451 - 2² = 11447 is a prime.

It is a super-2 number, since 2×11451² = 262250802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11411) 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, 141 + ... + 206.

It is an arithmetic number, because the mean of its divisors is an integer number (2088).

2¹¹⁴⁵¹ is an apocalyptic number.

11451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11451 is a deficient number, since it is larger than the sum of its proper divisors (5253).

11451 is a wasteful number, since it uses less digits than its factorization.

11451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361.

The product of its digits is 20, while the sum is 12.

The square root of 11451 is about 107.0093453863. The cubic root of 11451 is about 22.5396830566.

Adding to 11451 its reverse (15411), we get a palindrome (26862).

The spelling of 11451 in words is "eleven thousand, four hundred fifty-one".