212297195 has 16 divisors (see below), whose sum is σ = 278205408. Its totient is φ = 154237440.

The previous prime is 212297179. The next prime is 212297201. The reversal of 212297195 is 591792212.

It is not a de Polignac number, because 212297195 - 2⁴ = 212297179 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86627 + ... + 89043.

It is an arithmetic number, because the mean of its divisors is an integer number (17387838).

Almost surely, 2^212297195 is an apocalyptic number.

212297195 is a deficient number, since it is larger than the sum of its proper divisors (65908213).

212297195 is a wasteful number, since it uses less digits than its factorization.

212297195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030.

The product of its digits is 22680, while the sum is 38.

The square root of 212297195 is about 14570.4219225114. The cubic root of 212297195 is about 596.5516968264.

The spelling of 212297195 in words is "two hundred twelve million, two hundred ninety-seven thousand, one hundred ninety-five".