2102500 has 45 divisors (see below), whose sum is σ = 4761757. Its totient is φ = 812000.

The previous prime is 2102497. The next prime is 2102519. The reversal of 2102500 is 52012.

The square root of 2102500 is 1450.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 1572516 + 529984 = 1254^2 + 728^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 72486 + ... + 72514.

2^2102500 is an apocalyptic number.

2102500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2102500 is the 1450-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102500

2102500 is an abundant number, since it is smaller than the sum of its proper divisors (2659257).

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

2102500 is an equidigital number, since it uses as much as digits as its factorization.

2102500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The cubic root of 2102500 is about 128.1087129803.

Adding to 2102500 its reverse (52012), we get a palindrome (2154512).

The spelling of 2102500 in words is "two million, one hundred two thousand, five hundred".