2113998609 has 8 divisors (see below), whose sum is σ = 2941215552. Its totient is φ = 1348057040.

The previous prime is 2113998599. The next prime is 2113998611. The reversal of 2113998609 is 9068993112.

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

It is a cyclic number.

It is not a de Polignac number, because 2113998609 - 2¹² = 2113994513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2113990609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15318762 + ... + 15318899.

It is an arithmetic number, because the mean of its divisors is an integer number (367651944).

Almost surely, 2^2113998609 is an apocalyptic number.

It is an amenable number.

2113998609 is a deficient number, since it is larger than the sum of its proper divisors (827216943).

2113998609 is a wasteful number, since it uses less digits than its factorization.

2113998609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30637687.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 2113998609 is about 45978.2406035725. The cubic root of 2113998609 is about 1283.4183144415.

The spelling of 2113998609 in words is "two billion, one hundred thirteen million, nine hundred ninety-eight thousand, six hundred nine".