212395 has 8 divisors (see below), whose sum is σ = 257904. Its totient is φ = 167904.

The previous prime is 212383. The next prime is 212411. The reversal of 212395 is 593212.

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

It is a cyclic number.

It is not a de Polignac number, because 212395 - 2¹¹ = 210347 is a prime.

It is a super-2 number, since 2×212395² = 90223272050, which contains 22 as substring.

It is a Duffinian number.

212395 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337 + ... + 733.

It is an arithmetic number, because the mean of its divisors is an integer number (32238).

2²¹²³⁹⁵ is an apocalyptic number.

212395 is a deficient number, since it is larger than the sum of its proper divisors (45509).

212395 is a wasteful number, since it uses less digits than its factorization.

212395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its digits is 540, while the sum is 22.

The square root of 212395 is about 460.8633203022. The cubic root of 212395 is about 59.6643292920.

The spelling of 212395 in words is "two hundred twelve thousand, three hundred ninety-five".