2109454199 has 4 divisors (see below), whose sum is σ = 2145207720. Its totient is φ = 2073700680.

The previous prime is 2109454169. The next prime is 2109454211. The reversal of 2109454199 is 9914549012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2109454199 - 2⁸ = 2109453943 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 (2109454159) 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, 17876672 + ... + 17876789.

It is an arithmetic number, because the mean of its divisors is an integer number (536301930).

Almost surely, 2^2109454199 is an apocalyptic number.

2109454199 is a deficient number, since it is larger than the sum of its proper divisors (35753521).

2109454199 is an equidigital number, since it uses as much as digits as its factorization.

2109454199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35753520.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 2109454199 is about 45928.7948785944. The cubic root of 2109454199 is about 1282.4980105782.

The spelling of 2109454199 in words is "two billion, one hundred nine million, four hundred fifty-four thousand, one hundred ninety-nine".