451321 has 8 divisors (see below), whose sum is σ = 491400. Its totient is φ = 412032.

The previous prime is 451313. The next prime is 451331. The reversal of 451321 is 123154.

It can be written as a sum of positive squares in 4 ways, for example, as 14400 + 436921 = 120^2 + 661^2 .

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 451321 - 2³ = 451313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 451295 and 451304.

It is not an unprimeable number, because it can be changed into a prime (451301) 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, 1821 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (61425).

2⁴⁵¹³²¹ is an apocalyptic number.

It is an amenable number.

451321 is a deficient number, since it is larger than the sum of its proper divisors (40079).

451321 is a wasteful number, since it uses less digits than its factorization.

451321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395.

The product of its digits is 120, while the sum is 16.

The square root of 451321 is about 671.8042869765. The cubic root of 451321 is about 76.7058547818.

Adding to 451321 its reverse (123154), we get a palindrome (574475).

The spelling of 451321 in words is "four hundred fifty-one thousand, three hundred twenty-one".