445000451321 has 8 divisors (see below), whose sum is σ = 460355243400. Its totient is φ = 429646322560.

The previous prime is 445000451299. The next prime is 445000451347. The reversal of 445000451321 is 123154000544.

It can be written as a sum of positive squares in 4 ways, for example, as 28670955625 + 416329495696 = 169325^2 + 645236^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445000451321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445000451381) 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, 1474061 + ... + 1750101.

It is an arithmetic number, because the mean of its divisors is an integer number (57544405425).

Almost surely, 2^445000451321 is an apocalyptic number.

It is an amenable number.

445000451321 is a deficient number, since it is larger than the sum of its proper divisors (15354792079).

445000451321 is a wasteful number, since it uses less digits than its factorization.

445000451321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331659.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 445000451321 its reverse (123154000544), we get a palindrome (568154451865).

The spelling of 445000451321 in words is "four hundred forty-five billion, four hundred fifty-one thousand, three hundred twenty-one".