2181018014 has 8 divisors (see below), whose sum is σ = 3738888048. Its totient is φ = 934722000.

The previous prime is 2181017983. The next prime is 2181018019. The reversal of 2181018014 is 4108101812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2181018019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77893487 + ... + 77893514.

It is an arithmetic number, because the mean of its divisors is an integer number (467361006).

Almost surely, 2^2181018014 is an apocalyptic number.

2181018014 is a deficient number, since it is larger than the sum of its proper divisors (1557870034).

2181018014 is a wasteful number, since it uses less digits than its factorization.

2181018014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155787010.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 2181018014 is about 46701.3705794594. The cubic root of 2181018014 is about 1296.8400598001.

Adding to 2181018014 its reverse (4108101812), we get a palindrome (6289119826).

The spelling of 2181018014 in words is "two billion, one hundred eighty-one million, eighteen thousand, fourteen".