453423013 has 4 divisors (see below), whose sum is σ = 454220460. Its totient is φ = 452625568.

The previous prime is 453423007. The next prime is 453423017. The reversal of 453423013 is 310324354.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310324354 = 2 ⋅155162177.

It can be written as a sum of positive squares in 2 ways, for example, as 265787809 + 187635204 = 16303^2 + 13698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453423013 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 (453423017) 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, 397870 + ... + 399007.

It is an arithmetic number, because the mean of its divisors is an integer number (113555115).

Almost surely, 2^453423013 is an apocalyptic number.

It is an amenable number.

453423013 is a deficient number, since it is larger than the sum of its proper divisors (797447).

453423013 is an equidigital number, since it uses as much as digits as its factorization.

453423013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797446.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 453423013 is about 21293.7317772156. The cubic root of 453423013 is about 768.2475539533.

Adding to 453423013 its reverse (310324354), we get a palindrome (763747367).

The spelling of 453423013 in words is "four hundred fifty-three million, four hundred twenty-three thousand, thirteen".