215087 has 2 divisors, whose sum is σ = 215088. Its totient is φ = 215086.

The previous prime is 215077. The next prime is 215123. The reversal of 215087 is 780512.

215087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215087 - 2⁸ = 214831 is a prime.

It is a super-3 number, since 3×215087³ = 29851333822990509, which contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107543 + 107544.

It is an arithmetic number, because the mean of its divisors is an integer number (107544).

2²¹⁵⁰⁸⁷ is an apocalyptic number.

215087 is a deficient number, since it is larger than the sum of its proper divisors (1).

215087 is an equidigital number, since it uses as much as digits as its factorization.

215087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 215087 is about 463.7747297989. The cubic root of 215087 is about 59.9153435740.

Adding to 215087 its reverse (780512), we get a palindrome (995599).

The spelling of 215087 in words is "two hundred fifteen thousand, eighty-seven".