450144023 has 4 divisors (see below), whose sum is σ = 514450320. Its totient is φ = 385837728.

The previous prime is 450144011. The next prime is 450144053. The reversal of 450144023 is 320441054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450144023 - 2⁶ = 450143959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 450144023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450144053) 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, 32153138 + ... + 32153151.

It is an arithmetic number, because the mean of its divisors is an integer number (128612580).

Almost surely, 2^450144023 is an apocalyptic number.

450144023 is a deficient number, since it is larger than the sum of its proper divisors (64306297).

450144023 is an equidigital number, since it uses as much as digits as its factorization.

450144023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64306296.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 450144023 is about 21216.5978186890. The cubic root of 450144023 is about 766.3911764019.

Adding to 450144023 its reverse (320441054), we get a palindrome (770585077).

The spelling of 450144023 in words is "four hundred fifty million, one hundred forty-four thousand, twenty-three".