2183734521 has 12 divisors (see below), whose sum is σ = 3159122148. Its totient is φ = 1453589664.

The previous prime is 2183734493. The next prime is 2183734523. The reversal of 2183734521 is 1254373812.

2183734521 is a `hidden beast` number, since 21 + 83 + 7 + 34 + 521 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 994519296 + 1189215225 = 31536^2 + 34485^2 .

It is not a de Polignac number, because 2183734521 - 2¹⁷ = 2183603449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2183734523) 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 11 ways as a sum of consecutive naturals, for example, 179910 + ... + 191663.

It is an arithmetic number, because the mean of its divisors is an integer number (263260179).

Almost surely, 2^2183734521 is an apocalyptic number.

It is an amenable number.

2183734521 is a deficient number, since it is larger than the sum of its proper divisors (975387627).

2183734521 is a wasteful number, since it uses less digits than its factorization.

2183734521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372232 (or 372229 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2183734521 is about 46730.4453327806. The cubic root of 2183734521 is about 1297.3782509082.

The spelling of 2183734521 in words is "two billion, one hundred eighty-three million, seven hundred thirty-four thousand, five hundred twenty-one".