214148197 has 4 divisors (see below), whose sum is σ = 214183116. Its totient is φ = 214113280.

The previous prime is 214148191. The next prime is 214148219. The reversal of 214148197 is 791841412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 133310116 + 80838081 = 11546^2 + 8991^2 .

It is a cyclic number.

It is not a de Polignac number, because 214148197 - 2²⁷ = 79930469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214148191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5554 + ... + 21427.

It is an arithmetic number, because the mean of its divisors is an integer number (53545779).

Almost surely, 2^214148197 is an apocalyptic number.

It is an amenable number.

214148197 is a deficient number, since it is larger than the sum of its proper divisors (34919).

214148197 is an equidigital number, since it uses as much as digits as its factorization.

214148197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34918.

The product of its digits is 16128, while the sum is 37.

The square root of 214148197 is about 14633.8032308761. The cubic root of 214148197 is about 598.2804441801.

The spelling of 214148197 in words is "two hundred fourteen million, one hundred forty-eight thousand, one hundred ninety-seven".