2105132556 has 24 divisors (see below), whose sum is σ = 4913685504. Its totient is φ = 701466640.

The previous prime is 2105132539. The next prime is 2105132581. The reversal of 2105132556 is 6552315012.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7261 + ... + 65291.

It is an arithmetic number, because the mean of its divisors is an integer number (204736896).

Almost surely, 2^2105132556 is an apocalyptic number.

It is an amenable number.

2105132556 is an abundant number, since it is smaller than the sum of its proper divisors (2808552948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105132556 is a wasteful number, since it uses less digits than its factorization.

2105132556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61061 (or 61059 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2105132556 is about 45881.7235508868. The cubic root of 2105132556 is about 1281.6215930603.

Adding to 2105132556 its reverse (6552315012), we get a palindrome (8657447568).

The spelling of 2105132556 in words is "two billion, one hundred five million, one hundred thirty-two thousand, five hundred fifty-six".