2111144149 has 4 divisors (see below), whose sum is σ = 2117522560. Its totient is φ = 2104765740.

The previous prime is 2111144141. The next prime is 2111144173. The reversal of 2111144149 is 9414411112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2111144149 - 2³ = 2111144141 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 (2111144141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3188709 + ... + 3189370.

It is an arithmetic number, because the mean of its divisors is an integer number (529380640).

Almost surely, 2^2111144149 is an apocalyptic number.

It is an amenable number.

2111144149 is a deficient number, since it is larger than the sum of its proper divisors (6378411).

2111144149 is an equidigital number, since it uses as much as digits as its factorization.

2111144149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378410.

The product of its digits is 1152, while the sum is 28.

The square root of 2111144149 is about 45947.1886952836. The cubic root of 2111144149 is about 1282.8404023040.

The spelling of 2111144149 in words is "two billion, one hundred eleven million, one hundred forty-four thousand, one hundred forty-nine".