1530530 has 16 divisors (see below), whose sum is σ = 2822904. Its totient is φ = 597120.

The previous prime is 1530523. The next prime is 1530539. The reversal of 1530530 is 350351.

It can be written as a sum of positive squares in 4 ways, for example, as 863041 + 667489 = 929^2 + 817^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1530499 and 1530508.

It is not an unprimeable number, because it can be changed into a prime (1530539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457 + ... + 2276.

2^1530530 is an apocalyptic number.

1530530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1530530 is a deficient number, since it is larger than the sum of its proper divisors (1292374).

1530530 is a wasteful number, since it uses less digits than its factorization.

1530530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 1530530 is about 1237.1459089372. The cubic root of 1530530 is about 115.2428390862.

Adding to 1530530 its reverse (350351), we get a palindrome (1880881).

The spelling of 1530530 in words is "one million, five hundred thirty thousand, five hundred thirty".