215194 has 16 divisors (see below), whose sum is σ = 388800. Its totient is φ = 87264.

The previous prime is 215191. The next prime is 215197. The reversal of 215194 is 491512.

215194 is nontrivially palindromic in base 12.

It is an interprime number because it is at equal distance from previous prime (215191) and next prime (215197).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (215191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139 + ... + 670.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2²¹⁵¹⁹⁴ is an apocalyptic number.

215194 is a deficient number, since it is larger than the sum of its proper divisors (173606).

215194 is a wasteful number, since it uses less digits than its factorization.

215194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837.

The product of its digits is 360, while the sum is 22.

The square root of 215194 is about 463.8900731854. The cubic root of 215194 is about 59.9252773511.

The spelling of 215194 in words is "two hundred fifteen thousand, one hundred ninety-four".