215345135 has 8 divisors (see below), whose sum is σ = 258623280. Its totient is φ = 172136704.

The previous prime is 215345129. The next prime is 215345149. The reversal of 215345135 is 531543512.

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

It is a cyclic number.

It is not a de Polignac number, because 215345135 - 2¹² = 215341039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215345098 and 215345107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10370 + ... + 23199.

It is an arithmetic number, because the mean of its divisors is an integer number (32327910).

Almost surely, 2^215345135 is an apocalyptic number.

215345135 is a deficient number, since it is larger than the sum of its proper divisors (43278145).

215345135 is a wasteful number, since it uses less digits than its factorization.

215345135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34857.

The product of its digits is 9000, while the sum is 29.

The square root of 215345135 is about 14674.6425850853. The cubic root of 215345135 is about 599.3930297040.

Adding to 215345135 its reverse (531543512), we get a palindrome (746888647).

The spelling of 215345135 in words is "two hundred fifteen million, three hundred forty-five thousand, one hundred thirty-five".