2105534513 has 4 divisors (see below), whose sum is σ = 2107538928. Its totient is φ = 2103530100.

The previous prime is 2105534491. The next prime is 2105534527. The reversal of 2105534513 is 3154355012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2105534513 - 2¹⁶ = 2105468977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105534113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000631 + ... + 1002732.

It is an arithmetic number, because the mean of its divisors is an integer number (526884732).

Almost surely, 2^2105534513 is an apocalyptic number.

It is an amenable number.

2105534513 is a deficient number, since it is larger than the sum of its proper divisors (2004415).

2105534513 is a wasteful number, since it uses less digits than its factorization.

2105534513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004414.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 2105534513 is about 45886.1037025372. The cubic root of 2105534513 is about 1281.7031594181.

Adding to 2105534513 its reverse (3154355012), we get a palindrome (5259889525).

The spelling of 2105534513 in words is "two billion, one hundred five million, five hundred thirty-four thousand, five hundred thirteen".