2106534521 has 8 divisors (see below), whose sum is σ = 2592657984. Its totient is φ = 1666708560.

The previous prime is 2106534491. The next prime is 2106534527. The reversal of 2106534521 is 1254356012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2106534521 - 2¹⁰ = 2106533497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2106534527) 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 7 ways as a sum of consecutive naturals, for example, 11574275 + ... + 11574456.

It is an arithmetic number, because the mean of its divisors is an integer number (324082248).

Almost surely, 2^2106534521 is an apocalyptic number.

It is an amenable number.

2106534521 is a deficient number, since it is larger than the sum of its proper divisors (486123463).

2106534521 is a wasteful number, since it uses less digits than its factorization.

2106534521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23148751.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2106534521 is about 45896.9990413317. Note that the first 3 decimals coincide. The cubic root of 2106534521 is about 1281.9060391058.

The spelling of 2106534521 in words is "two billion, one hundred six million, five hundred thirty-four thousand, five hundred twenty-one".