2143211149 has 16 divisors (see below), whose sum is σ = 2203649136. Its totient is φ = 2083737600.

The previous prime is 2143211113. The next prime is 2143211159. The reversal of 2143211149 is 9411123412.

It can be written as a sum of positive squares in 8 ways, for example, as 984829924 + 1158381225 = 31382^2 + 34035^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143211149 - 2²⁷ = 2008993421 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 (2143211159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2815929 + ... + 2816689.

It is an arithmetic number, because the mean of its divisors is an integer number (137728071).

Almost surely, 2^2143211149 is an apocalyptic number.

It is an amenable number.

2143211149 is a deficient number, since it is larger than the sum of its proper divisors (60437987).

2143211149 is a wasteful number, since it uses less digits than its factorization.

2143211149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296.

The product of its digits is 1728, while the sum is 28.

The square root of 2143211149 is about 46294.8285340814. The cubic root of 2143211149 is about 1289.3029804203.

The spelling of 2143211149 in words is "two billion, one hundred forty-three million, two hundred eleven thousand, one hundred forty-nine".