1020500 has 48 divisors (see below), whose sum is σ = 2415504. Its totient is φ = 374400.

The previous prime is 1020491. The next prime is 1020517. The reversal of 1020500 is 50201.

1020500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 633616 + 386884 = 796^2 + 622^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6422 + ... + 6578.

It is an arithmetic number, because the mean of its divisors is an integer number (50323).

2^1020500 is an apocalyptic number.

1020500 is a gapful number since it is divisible by the number (10) 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 1020500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207752).

1020500 is an abundant number, since it is smaller than the sum of its proper divisors (1395004).

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

1020500 is a wasteful number, since it uses less digits than its factorization.

1020500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 1020500 is about 1010.1980003940. The cubic root of 1020500 is about 100.6787163526.

Adding to 1020500 its reverse (50201), we get a palindrome (1070701).

Subtracting from 1020500 its reverse (50201), we obtain a cube (970299 = 99³).

The spelling of 1020500 in words is "one million, twenty thousand, five hundred".