2134243521 has 24 divisors (see below), whose sum is σ = 3139306560. Its totient is φ = 1396813536.

The previous prime is 2134243511. The next prime is 2134243537. The reversal of 2134243521 is 1253424312.

2134243521 is a `hidden beast` number, since 2 + 134 + 2 + 4 + 3 + 521 = 666.

It is not a de Polignac number, because 2134243521 - 2¹⁰ = 2134242497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2134243511) 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 23 ways as a sum of consecutive naturals, for example, 463396 + ... + 467978.

It is an arithmetic number, because the mean of its divisors is an integer number (130804440).

Almost surely, 2^2134243521 is an apocalyptic number.

It is an amenable number.

2134243521 is a deficient number, since it is larger than the sum of its proper divisors (1005063039).

2134243521 is a wasteful number, since it uses less digits than its factorization.

2134243521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525 (or 5522 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 2134243521 is about 46197.8735549592. The cubic root of 2134243521 is about 1287.5022318873.

Adding to 2134243521 its reverse (1253424312), we get a palindrome (3387667833).

The spelling of 2134243521 in words is "two billion, one hundred thirty-four million, two hundred forty-three thousand, five hundred twenty-one".