2100454019 has 2 divisors, whose sum is σ = 2100454020. Its totient is φ = 2100454018.

The previous prime is 2100454003. The next prime is 2100454049. The reversal of 2100454019 is 9104540012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100454019 - 2⁴ = 2100454003 is a prime.

It is a super-2 number, since 2×2100454019² = 8823814171866504722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2100454049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050227009 + 1050227010.

It is an arithmetic number, because the mean of its divisors is an integer number (1050227010).

Almost surely, 2^2100454019 is an apocalyptic number.

2100454019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100454019 is an equidigital number, since it uses as much as digits as its factorization.

2100454019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2100454019 is about 45830.7104352529. The cubic root of 2100454019 is about 1280.6714452061.

The spelling of 2100454019 in words is "two billion, one hundred million, four hundred fifty-four thousand, nineteen".