2113516729 has 9 divisors (see below), whose sum is σ = 2185367589. Its totient is φ = 2043959580.

The previous prime is 2113516709. The next prime is 2113516747. The reversal of 2113516729 is 9276153112.

The square root of 2113516729 is 45973.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2113516729 - 2⁵ = 2113516697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113516709) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1424422 + ... + 1425904.

It is an arithmetic number, because the mean of its divisors is an integer number (242818621).

Almost surely, 2^2113516729 is an apocalyptic number.

2113516729 is the 45973-rd square number.

2113516729 is the 22987-th centered octagonal number.

It is an amenable number.

2113516729 is a deficient number, since it is larger than the sum of its proper divisors (71850860).

2113516729 is an frugal number, since it uses more digits than its factorization.

2113516729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028 (or 1514 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The cubic root of 2113516729 is about 1283.3207898401.

The spelling of 2113516729 in words is "two billion, one hundred thirteen million, five hundred sixteen thousand, seven hundred twenty-nine".