423511453 has 2 divisors, whose sum is σ = 423511454. Its totient is φ = 423511452.

The previous prime is 423511441. The next prime is 423511477. The reversal of 423511453 is 354115324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398481444 + 25030009 = 19962^2 + 5003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423511453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423521453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211755726 + 211755727.

It is an arithmetic number, because the mean of its divisors is an integer number (211755727).

Almost surely, 2^423511453 is an apocalyptic number.

It is an amenable number.

423511453 is a deficient number, since it is larger than the sum of its proper divisors (1).

423511453 is an equidigital number, since it uses as much as digits as its factorization.

423511453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 423511453 is about 20579.3938929211. The cubic root of 423511453 is about 750.9684987345.

Adding to 423511453 its reverse (354115324), we get a palindrome (777626777).

The spelling of 423511453 in words is "four hundred twenty-three million, five hundred eleven thousand, four hundred fifty-three".