15135025215 has 8 divisors (see below), whose sum is σ = 24216040368. Its totient is φ = 8072013440.

The previous prime is 15135025201. The next prime is 15135025219. The reversal of 15135025215 is 51252053151.

15135025215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15135025215 - 2¹⁵ = 15134992447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15135025219) 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, 504500826 + ... + 504500855.

It is an arithmetic number, because the mean of its divisors is an integer number (3027005046).

Almost surely, 2^15135025215 is an apocalyptic number.

15135025215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15135025215 is a deficient number, since it is larger than the sum of its proper divisors (9081015153).

15135025215 is a wasteful number, since it uses less digits than its factorization.

15135025215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009001689.

The product of its (nonzero) digits is 7500, while the sum is 30.

Adding to 15135025215 its reverse (51252053151), we get a palindrome (66387078366).

The spelling of 15135025215 in words is "fifteen billion, one hundred thirty-five million, twenty-five thousand, two hundred fifteen".