215015131276 has 36 divisors (see below), whose sum is σ = 413987658280. Its totient is φ = 97640928000.

The previous prime is 215015131223. The next prime is 215015131277. The reversal of 215015131276 is 672131510512.

It is not an unprimeable number, because it can be changed into a prime (215015131277) 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 11 ways as a sum of consecutive naturals, for example, 297340 + ... + 720028.

Almost surely, 2^215015131276 is an apocalyptic number.

It is an amenable number.

215015131276 is a deficient number, since it is larger than the sum of its proper divisors (198972527004).

215015131276 is a wasteful number, since it uses less digits than its factorization.

215015131276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423766 (or 423753 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

Adding to 215015131276 its reverse (672131510512), we get a palindrome (887146641788).

The spelling of 215015131276 in words is "two hundred fifteen billion, fifteen million, one hundred thirty-one thousand, two hundred seventy-six".