197215 has 4 divisors (see below), whose sum is σ = 236664. Its totient is φ = 157768.

The previous prime is 197207. The next prime is 197221. The reversal of 197215 is 512791.

197215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 197215 - 2³ = 197207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19717 + ... + 19726.

It is an arithmetic number, because the mean of its divisors is an integer number (59166).

2¹⁹⁷²¹⁵ is an apocalyptic number.

197215 is a deficient number, since it is larger than the sum of its proper divisors (39449).

197215 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 11 representation: 197215 = (125197)₁₁.

197215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39448.

The product of its digits is 630, while the sum is 25.

The square root of 197215 is about 444.0889550529. The cubic root of 197215 is about 58.2076386490.

The spelling of 197215 in words is "one hundred ninety-seven thousand, two hundred fifteen".