15135304215 has 32 divisors (see below), whose sum is σ = 25323757056. Its totient is φ = 7704583040.

The previous prime is 15135304213. The next prime is 15135304243. The reversal of 15135304215 is 51240353151.

It is not a de Polignac number, because 15135304215 - 2¹ = 15135304213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15135304211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114145 + ... + 208085.

It is an arithmetic number, because the mean of its divisors is an integer number (791367408).

Almost surely, 2^15135304215 is an apocalyptic number.

15135304215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15135304215 is a deficient number, since it is larger than the sum of its proper divisors (10188452841).

15135304215 is a wasteful number, since it uses less digits than its factorization.

15135304215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94439.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 15135304215 its reverse (51240353151), we get a palindrome (66375657366).

The spelling of 15135304215 in words is "fifteen billion, one hundred thirty-five million, three hundred four thousand, two hundred fifteen".