450013 has 4 divisors (see below), whose sum is σ = 451360. Its totient is φ = 448668.

The previous prime is 450011. The next prime is 450019. The reversal of 450013 is 310054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 310054 = 2 ⋅155027.

It is a cyclic number.

It is not a de Polignac number, because 450013 - 2¹ = 450011 is a prime.

It is a Duffinian number.

450013 is a lucky number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 449975 and 450002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450011) 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, 256 + ... + 982.

It is an arithmetic number, because the mean of its divisors is an integer number (112840).

2⁴⁵⁰⁰¹³ is an apocalyptic number.

It is an amenable number.

450013 is a deficient number, since it is larger than the sum of its proper divisors (1347).

450013 is an equidigital number, since it uses as much as digits as its factorization.

450013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 450013 is about 670.8300828079. The cubic root of 450013 is about 76.6316811599.

Adding to 450013 its reverse (310054), we get a palindrome (760067).

The spelling of 450013 in words is "four hundred fifty thousand, thirteen".