1020502530 has 32 divisors (see below), whose sum is σ = 2721340800. Its totient is φ = 272133936.

The previous prime is 1020502519. The next prime is 1020502541. The reversal of 1020502530 is 352050201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020502519) and next prime (1020502541).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1889550 + ... + 1890089.

It is an arithmetic number, because the mean of its divisors is an integer number (85041900).

Almost surely, 2^1020502530 is an apocalyptic number.

1020502530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020502530 is an abundant number, since it is smaller than the sum of its proper divisors (1700838270).

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

1020502530 is a wasteful number, since it uses less digits than its factorization.

1020502530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779655 (or 3779649 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1020502530 is about 31945.3052888840. The cubic root of 1020502530 is about 1006.7879955268.

Adding to 1020502530 its reverse (352050201), we get a palindrome (1372552731).

The spelling of 1020502530 in words is "one billion, twenty million, five hundred two thousand, five hundred thirty".