15009530 has 32 divisors (see below), whose sum is σ = 28371600. Its totient is φ = 5709312.

The previous prime is 15009523. The next prime is 15009539. The reversal of 15009530 is 3590051.

It can be written as a sum of positive squares in 8 ways, for example, as 4165681 + 10843849 = 2041^2 + 3293^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15009496 and 15009505.

It is not an unprimeable number, because it can be changed into a prime (15009539) by changing a digit.

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, 20816 + ... + 21524.

Almost surely, 2^15009530 is an apocalyptic number.

15009530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15009530 is a deficient number, since it is larger than the sum of its proper divisors (13362070).

15009530 is a wasteful number, since it uses less digits than its factorization.

15009530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 15009530 is about 3874.2134685637. The cubic root of 15009530 is about 246.6734252673.

Adding to 15009530 its reverse (3590051), we get a palindrome (18599581).

The spelling of 15009530 in words is "fifteen million, nine thousand, five hundred thirty".