12515246135 has 32 divisors (see below), whose sum is σ = 18076262400. Its totient is φ = 8126092800.

The previous prime is 12515246131. The next prime is 12515246141. The reversal of 12515246135 is 53164251521.

It is not a de Polignac number, because 12515246135 - 2² = 12515246131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a junction number, because it is equal to n+sod(n) for n = 12515246095 and 12515246104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515246131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1859306 + ... + 1866024.

It is an arithmetic number, because the mean of its divisors is an integer number (564883200).

Almost surely, 2^12515246135 is an apocalyptic number.

12515246135 is a deficient number, since it is larger than the sum of its proper divisors (5561016265).

12515246135 is a wasteful number, since it uses less digits than its factorization.

12515246135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9551.

The product of its digits is 36000, while the sum is 35.

Adding to 12515246135 its reverse (53164251521), we get a palindrome (65679497656).

The spelling of 12515246135 in words is "twelve billion, five hundred fifteen million, two hundred forty-six thousand, one hundred thirty-five".