215201 has 8 divisors (see below), whose sum is σ = 249984. Its totient is φ = 181440.

The previous prime is 215197. The next prime is 215239. The reversal of 215201 is 102512.

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

It is not a de Polignac number, because 215201 - 2² = 215197 is a prime.

It is a super-2 number, since 2×215201² = 92622940802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281 + ... + 713.

It is an arithmetic number, because the mean of its divisors is an integer number (31248).

2²¹⁵²⁰¹ is an apocalyptic number.

It is an amenable number.

215201 is a deficient number, since it is larger than the sum of its proper divisors (34783).

215201 is an equidigital number, since it uses as much as digits as its factorization.

215201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 215201 is about 463.8976180150. The cubic root of 215201 is about 59.9259271096.

Adding to 215201 its reverse (102512), we get a palindrome (317713).

The spelling of 215201 in words is "two hundred fifteen thousand, two hundred one".