451121 has 4 divisors (see below), whose sum is σ = 492144. Its totient is φ = 410100.

The previous prime is 451109. The next prime is 451159. The reversal of 451121 is 121154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 451121 - 2⁶ = 451057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 451096 and 451105.

It is not an unprimeable number, because it can be changed into a prime (451181) 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, 20495 + ... + 20516.

It is an arithmetic number, because the mean of its divisors is an integer number (123036).

2⁴⁵¹¹²¹ is an apocalyptic number.

It is an amenable number.

451121 is a deficient number, since it is larger than the sum of its proper divisors (41023).

451121 is a wasteful number, since it uses less digits than its factorization.

451121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41022.

The product of its digits is 40, while the sum is 14.

The square root of 451121 is about 671.6554176064. The cubic root of 451121 is about 76.6945225389.

Adding to 451121 its reverse (121154), we get a palindrome (572275).

The spelling of 451121 in words is "four hundred fifty-one thousand, one hundred twenty-one".