2162889149 has 4 divisors (see below), whose sum is σ = 2276725440. Its totient is φ = 2049052860.

The previous prime is 2162889133. The next prime is 2162889163. The reversal of 2162889149 is 9419882612.

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 2162889149 - 2⁴ = 2162889133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2162889097 and 2162889106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162885149) 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, 56918117 + ... + 56918154.

It is an arithmetic number, because the mean of its divisors is an integer number (569181360).

Almost surely, 2^2162889149 is an apocalyptic number.

It is an amenable number.

2162889149 is a deficient number, since it is larger than the sum of its proper divisors (113836291).

2162889149 is a wasteful number, since it uses less digits than its factorization.

2162889149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113836290.

The product of its digits is 497664, while the sum is 50.

The square root of 2162889149 is about 46506.8720620942. The cubic root of 2162889149 is about 1293.2368982474.

The spelling of 2162889149 in words is "two billion, one hundred sixty-two million, eight hundred eighty-nine thousand, one hundred forty-nine".