2149919099 has 4 divisors (see below), whose sum is σ = 2219271360. Its totient is φ = 2080566840.

The previous prime is 2149919087. The next prime is 2149919137. The reversal of 2149919099 is 9909199412.

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 2149919099 - 2⁸ = 2149918843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2149919099.

It is not an unprimeable number, because it can be changed into a prime (2149919029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34676084 + ... + 34676145.

It is an arithmetic number, because the mean of its divisors is an integer number (554817840).

Almost surely, 2^2149919099 is an apocalyptic number.

2149919099 is a deficient number, since it is larger than the sum of its proper divisors (69352261).

2149919099 is an equidigital number, since it uses as much as digits as its factorization.

2149919099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69352260.

The product of its (nonzero) digits is 472392, while the sum is 53.

The square root of 2149919099 is about 46367.2200913533. The cubic root of 2149919099 is about 1290.6466919566.

The spelling of 2149919099 in words is "two billion, one hundred forty-nine million, nine hundred nineteen thousand, ninety-nine".