215235 has 12 divisors (see below), whose sum is σ = 373152. Its totient is φ = 114768.

The previous prime is 215197. The next prime is 215239. The reversal of 215235 is 532512.

It is a happy number.

It is not a de Polignac number, because 215235 - 2⁹ = 214723 is a prime.

It is a super-2 number, since 2×215235² = 92652210450, which contains 22 as substring.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (215239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2347 + ... + 2436.

It is an arithmetic number, because the mean of its divisors is an integer number (31096).

2²¹⁵²³⁵ is an apocalyptic number.

215235 is a deficient number, since it is larger than the sum of its proper divisors (157917).

215235 is a wasteful number, since it uses less digits than its factorization.

215235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4794 (or 4791 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 215235 is about 463.9342625847. The cubic root of 215235 is about 59.9290828791.

Adding to 215235 its reverse (532512), we get a palindrome (747747).

It can be divided in two parts, 21523 and 5, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 215235 in words is "two hundred fifteen thousand, two hundred thirty-five".