1452320213 has 4 divisors (see below), whose sum is σ = 1454690028. Its totient is φ = 1449950400.

The previous prime is 1452320173. The next prime is 1452320237. The reversal of 1452320213 is 3120232541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3120232541 = 659 ⋅4734799.

It can be written as a sum of positive squares in 2 ways, for example, as 109977169 + 1342343044 = 10487^2 + 36638^2 .

It is a cyclic number.

It is not a de Polignac number, because 1452320213 - 2²⁰ = 1451271637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452320273) 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, 1183988 + ... + 1185213.

It is an arithmetic number, because the mean of its divisors is an integer number (363672507).

Almost surely, 2^1452320213 is an apocalyptic number.

It is an amenable number.

1452320213 is a deficient number, since it is larger than the sum of its proper divisors (2369815).

1452320213 is an equidigital number, since it uses as much as digits as its factorization.

1452320213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369814.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1452320213 is about 38109.3192408366. The cubic root of 1452320213 is about 1132.4545836339.

Adding to 1452320213 its reverse (3120232541), we get a palindrome (4572552754).

The spelling of 1452320213 in words is "one billion, four hundred fifty-two million, three hundred twenty thousand, two hundred thirteen".