1423205453 has 2 divisors, whose sum is σ = 1423205454. Its totient is φ = 1423205452.

The previous prime is 1423205447. The next prime is 1423205467. The reversal of 1423205453 is 3545023241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 915244009 + 507961444 = 30253^2 + 22538^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423205453 - 2⁸ = 1423205197 is a prime.

It is a super-2 number, since 2×1423205453² = 4051027522897870418, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423205423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711602726 + 711602727.

It is an arithmetic number, because the mean of its divisors is an integer number (711602727).

Almost surely, 2^1423205453 is an apocalyptic number.

It is an amenable number.

1423205453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423205453 is an equidigital number, since it uses as much as digits as its factorization.

1423205453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 1423205453 is about 37725.3953325873. The cubic root of 1423205453 is about 1124.8359801701.

Adding to 1423205453 its reverse (3545023241), we get a palindrome (4968228694).

The spelling of 1423205453 in words is "one billion, four hundred twenty-three million, two hundred five thousand, four hundred fifty-three".