2162006549 has 4 divisors (see below), whose sum is σ = 2174952864. Its totient is φ = 2149060236.

The previous prime is 2162006543. The next prime is 2162006551. The reversal of 2162006549 is 9456002612.

It is a happy number.

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 2162006549 - 2²⁸ = 1893571093 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 (2162006543) 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, 6472907 + ... + 6473240.

It is an arithmetic number, because the mean of its divisors is an integer number (543738216).

Almost surely, 2^2162006549 is an apocalyptic number.

It is an amenable number.

2162006549 is a deficient number, since it is larger than the sum of its proper divisors (12946315).

2162006549 is a wasteful number, since it uses less digits than its factorization.

2162006549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12946314.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2162006549 is about 46497.3821736235. The cubic root of 2162006549 is about 1293.0609659489.

The spelling of 2162006549 in words is "two billion, one hundred sixty-two million, six thousand, five hundred forty-nine".