215134255353 has 16 divisors (see below), whose sum is σ = 287094652416. Its totient is φ = 143298405120.

The previous prime is 215134255351. The next prime is 215134255397. The reversal of 215134255353 is 353552431512.

It is not a de Polignac number, because 215134255353 - 2¹ = 215134255351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215134255351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32706801 + ... + 32713377.

It is an arithmetic number, because the mean of its divisors is an integer number (17943415776).

Almost surely, 2^215134255353 is an apocalyptic number.

It is an amenable number.

215134255353 is a deficient number, since it is larger than the sum of its proper divisors (71960397063).

215134255353 is a wasteful number, since it uses less digits than its factorization.

215134255353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14384.

The product of its digits is 270000, while the sum is 39.

Adding to 215134255353 its reverse (353552431512), we get a palindrome (568686686865).

The spelling of 215134255353 in words is "two hundred fifteen billion, one hundred thirty-four million, two hundred fifty-five thousand, three hundred fifty-three".