216359 has 16 divisors (see below), whose sum is σ = 272160. Its totient is φ = 168960.

The previous prime is 216347. The next prime is 216371. The reversal of 216359 is 953612.

216359 = T₃₂ + T₃₃ + ... + T₁₀₉.

It is an interprime number because it is at equal distance from previous prime (216347) and next prime (216371).

It is not a de Polignac number, because 216359 - 2⁸ = 216103 is a prime.

It is a super-2 number, since 2×216359² = 93622433762, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 216359.

It is not an unprimeable number, because it can be changed into a prime (216319) 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, 2387 + ... + 2475.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2²¹⁶³⁵⁹ is an apocalyptic number.

216359 is a deficient number, since it is larger than the sum of its proper divisors (55801).

216359 is a wasteful number, since it uses less digits than its factorization.

216359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130.

The product of its digits is 1620, while the sum is 26.

The square root of 216359 is about 465.1440637050. The cubic root of 216359 is about 60.0332223419.

It can be divided in two parts, 2163 and 59, that added together give a palindrome (2222).

The spelling of 216359 in words is "two hundred sixteen thousand, three hundred fifty-nine".