2113018459 has 4 divisors (see below), whose sum is σ = 2170127104. Its totient is φ = 2055909816.

The previous prime is 2113018423. The next prime is 2113018483. The reversal of 2113018459 is 9548103112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2113018459 - 2⁹ = 2113017947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113013459) 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, 28554267 + ... + 28554340.

It is an arithmetic number, because the mean of its divisors is an integer number (542531776).

Almost surely, 2^2113018459 is an apocalyptic number.

2113018459 is a deficient number, since it is larger than the sum of its proper divisors (57108645).

2113018459 is an equidigital number, since it uses as much as digits as its factorization.

2113018459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57108644.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 2113018459 is about 45967.5805214936. The cubic root of 2113018459 is about 1283.2199325820.

The spelling of 2113018459 in words is "two billion, one hundred thirteen million, eighteen thousand, four hundred fifty-nine".