2183038729 has 3 divisors (see below), whose sum is σ = 2183085453. Its totient is φ = 2182992006.

The previous prime is 2183038709. The next prime is 2183038757. The reversal of 2183038729 is 9278303812.

The square root of 2183038729 is 46723.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2183038729 - 2¹⁵ = 2183005961 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2183038709) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23362 + ... + 70084.

It is an arithmetic number, because the mean of its divisors is an integer number (727695151).

Almost surely, 2^2183038729 is an apocalyptic number.

2183038729 is the 46723-rd square number.

2183038729 is the 23362-nd centered octagonal number.

It is an amenable number.

2183038729 is a deficient number, since it is larger than the sum of its proper divisors (46724).

2183038729 is an frugal number, since it uses more digits than its factorization.

2183038729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93446 (or 46723 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The cubic root of 2183038729 is about 1297.2404439707.

The spelling of 2183038729 in words is "two billion, one hundred eighty-three million, thirty-eight thousand, seven hundred twenty-nine".