15212037530 has 16 divisors (see below), whose sum is σ = 27689328360. Its totient is φ = 6016445952.

The previous prime is 15212037509. The next prime is 15212037539. The reversal of 15212037530 is 3573021251.

15212037530 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 4 ways, for example, as 12665926849 + 2546110681 = 112543^2 + 50459^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15212037493 and 15212037502.

It is not an unprimeable number, because it can be changed into a prime (15212037539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8545199 + ... + 8546978.

Almost surely, 2^15212037530 is an apocalyptic number.

15212037530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15212037530 is a deficient number, since it is larger than the sum of its proper divisors (12477290830).

15212037530 is a wasteful number, since it uses less digits than its factorization.

15212037530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17092273.

The product of its (nonzero) digits is 6300, while the sum is 29.

Adding to 15212037530 its reverse (3573021251), we get a palindrome (18785058781).

The spelling of 15212037530 in words is "fifteen billion, two hundred twelve million, thirty-seven thousand, five hundred thirty".