215158 has 8 divisors (see below), whose sum is σ = 325080. Its totient is φ = 106800.

The previous prime is 215153. The next prime is 215161. The reversal of 215158 is 851512.

215158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58 + ... + 658.

It is an arithmetic number, because the mean of its divisors is an integer number (40635).

2²¹⁵¹⁵⁸ is an apocalyptic number.

215158 is a deficient number, since it is larger than the sum of its proper divisors (109922).

215158 is a wasteful number, since it uses less digits than its factorization.

215158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782.

The product of its digits is 400, while the sum is 22.

The square root of 215158 is about 463.8512692663. The cubic root of 215158 is about 59.9219355134.

It can be divided in two parts, 2151 and 58, that added together give a square (2209 = 47²).

The spelling of 215158 in words is "two hundred fifteen thousand, one hundred fifty-eight".