214289197 has 2 divisors, whose sum is σ = 214289198. Its totient is φ = 214289196.

The previous prime is 214289189. The next prime is 214289209. The reversal of 214289197 is 791982412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123010281 + 91278916 = 11091^2 + 9554^2 .

It is a cyclic number.

It is not a de Polignac number, because 214289197 - 2³ = 214289189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214289177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107144598 + 107144599.

It is an arithmetic number, because the mean of its divisors is an integer number (107144599).

Almost surely, 2^214289197 is an apocalyptic number.

It is an amenable number.

214289197 is a deficient number, since it is larger than the sum of its proper divisors (1).

214289197 is an equidigital number, since it uses as much as digits as its factorization.

214289197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 43.

The square root of 214289197 is about 14638.6200510841. The cubic root of 214289197 is about 598.4117224822.

It can be divided in two parts, 21428 and 9197, that added together give a square (30625 = 175²).

The spelling of 214289197 in words is "two hundred fourteen million, two hundred eighty-nine thousand, one hundred ninety-seven".