450001001 has 8 divisors (see below), whose sum is σ = 452358984. Its totient is φ = 447649920.

The previous prime is 450000979. The next prime is 450001043. The reversal of 450001001 is 100100054.

It can be written as a sum of positive squares in 4 ways, for example, as 159264400 + 290736601 = 12620^2 + 17051^2 .

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-450001001 is a prime.

It is a Duffinian number.

450001001 is a modest number, since divided by 1001 gives 450 as remainder.

It is not an unprimeable number, because it can be changed into a prime (450001081) 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, 170645 + ... + 173261.

It is an arithmetic number, because the mean of its divisors is an integer number (56544873).

Almost surely, 2^450001001 is an apocalyptic number.

It is an amenable number.

450001001 is a deficient number, since it is larger than the sum of its proper divisors (2357983).

450001001 is a wasteful number, since it uses less digits than its factorization.

450001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 450001001 is about 21213.2270293796. The cubic root of 450001001 is about 766.3100005974.

Adding to 450001001 its reverse (100100054), we get a palindrome (550101055).

The spelling of 450001001 in words is "four hundred fifty million, one thousand, one".