1002530 has 16 divisors (see below), whose sum is σ = 1867320. Its totient is φ = 387072.

The previous prime is 1002527. The next prime is 1002553. The reversal of 1002530 is 352001.

It can be written as a sum of positive squares in 4 ways, for example, as 502681 + 499849 = 709^2 + 707^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1439 + ... + 2018.

2^1002530 is an apocalyptic number.

1002530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002530 is a deficient number, since it is larger than the sum of its proper divisors (864790).

1002530 is a wasteful number, since it uses less digits than its factorization.

1002530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 1002530 is about 1001.2642008980. The cubic root of 1002530 is about 100.0842623120.

Adding to 1002530 its reverse (352001), we get a palindrome (1354531).

The spelling of 1002530 in words is "one million, two thousand, five hundred thirty".