2126453999 has 2 divisors, whose sum is σ = 2126454000. Its totient is φ = 2126453998.

The previous prime is 2126453957. The next prime is 2126454013. The reversal of 2126453999 is 9993546212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2126453999 - 2⁸ = 2126453743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2126453909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063226999 + 1063227000.

It is an arithmetic number, because the mean of its divisors is an integer number (1063227000).

Almost surely, 2^2126453999 is an apocalyptic number.

2126453999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126453999 is an equidigital number, since it uses as much as digits as its factorization.

2126453999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1049760, while the sum is 50.

The square root of 2126453999 is about 46113.4904230855. The cubic root of 2126453999 is about 1285.9339552101.

The spelling of 2126453999 in words is "two billion, one hundred twenty-six million, four hundred fifty-three thousand, nine hundred ninety-nine".