216153135 has 24 divisors (see below), whose sum is σ = 408726864. Its totient is φ = 104801280.

The previous prime is 216153121. The next prime is 216153137. The reversal of 216153135 is 531351612.

216153135 = 6573² + 6574² + ... + 6577².

It is not a de Polignac number, because 216153135 - 2⁶ = 216153071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216153099 and 216153108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216153137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217842 + ... + 218831.

It is an arithmetic number, because the mean of its divisors is an integer number (17030286).

Almost surely, 2^216153135 is an apocalyptic number.

216153135 is a deficient number, since it is larger than the sum of its proper divisors (192573729).

216153135 is a wasteful number, since it uses less digits than its factorization.

216153135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436695 (or 436692 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 216153135 is about 14702.1472921475. The cubic root of 216153135 is about 600.1417581717.

It can be divided in two parts, 216 and 153135, that added together give a palindrome (153351).

The spelling of 216153135 in words is "two hundred sixteen million, one hundred fifty-three thousand, one hundred thirty-five".