2105150000 has 120 divisors (see below), whose sum is σ = 5178606048. Its totient is φ = 828800000.

The previous prime is 2105149987. The next prime is 2105150017. The reversal of 2105150000 is 515012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3549704 + ... + 3550296.

Almost surely, 2^2105150000 is an apocalyptic number.

2105150000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105150000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2589303024).

2105150000 is an abundant number, since it is smaller than the sum of its proper divisors (3073456048).

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

2105150000 is an frugal number, since it uses more digits than its factorization.

2105150000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 2105150000 is about 45881.9136479724. The cubic root of 2105150000 is about 1281.6251330662.

Adding to 2105150000 its reverse (515012), we get a palindrome (2105665012).

The spelling of 2105150000 in words is "two billion, one hundred five million, one hundred fifty thousand".