2162184989 has 4 divisors (see below), whose sum is σ = 2256193056. Its totient is φ = 2068176924.

The previous prime is 2162184919. The next prime is 2162185007. The reversal of 2162184989 is 9894812612.

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 2162184989 - 2¹² = 2162180893 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 (2162184919) 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, 47003999 + ... + 47004044.

It is an arithmetic number, because the mean of its divisors is an integer number (564048264).

Almost surely, 2^2162184989 is an apocalyptic number.

It is an amenable number.

2162184989 is a deficient number, since it is larger than the sum of its proper divisors (94008067).

2162184989 is an equidigital number, since it uses as much as digits as its factorization.

2162184989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94008066.

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

The square root of 2162184989 is about 46499.3009517347. The cubic root of 2162184989 is about 1293.0965389912.

The spelling of 2162184989 in words is "two billion, one hundred sixty-two million, one hundred eighty-four thousand, nine hundred eighty-nine".