450016901 has 4 divisors (see below), whose sum is σ = 450060204. Its totient is φ = 449973600.

The previous prime is 450016891. The next prime is 450016927. The reversal of 450016901 is 109610054.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 109610054 = 2 ⋅54805027.

It can be written as a sum of positive squares in 2 ways, for example, as 181548676 + 268468225 = 13474^2 + 16385^2 .

It is a cyclic number.

It is not a de Polignac number, because 450016901 - 2⁶ = 450016837 is a prime.

It is a super-2 number, since 2×450016901² = 405030422371287602, which contains 22 as substring.

It is a deceptive number, since it divides R_450016900.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450016951) 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, 4331 + ... + 30311.

It is an arithmetic number, because the mean of its divisors is an integer number (112515051).

It is a Poulet number, since it divides 2^450016900-1.

Almost surely, 2^450016901 is an apocalyptic number.

450016901 is the 17321-st pentagonal number.

It is an amenable number.

450016901 is a deficient number, since it is larger than the sum of its proper divisors (43303).

450016901 is a wasteful number, since it uses less digits than its factorization.

450016901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43302.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 450016901 is about 21213.6017922464. The cubic root of 450016901 is about 766.3190258999.

Adding to 450016901 its reverse (109610054), we get a palindrome (559626955).

The spelling of 450016901 in words is "four hundred fifty million, sixteen thousand, nine hundred one".