214569149 has 2 divisors, whose sum is σ = 214569150. Its totient is φ = 214569148.

The previous prime is 214569143. The next prime is 214569191. The reversal of 214569149 is 941965412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203632900 + 10936249 = 14270^2 + 3307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214569149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214569143) 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 as a sum of consecutive naturals, namely, 107284574 + 107284575.

It is an arithmetic number, because the mean of its divisors is an integer number (107284575).

Almost surely, 2^214569149 is an apocalyptic number.

It is an amenable number.

214569149 is a deficient number, since it is larger than the sum of its proper divisors (1).

214569149 is an equidigital number, since it uses as much as digits as its factorization.

214569149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 214569149 is about 14648.1790335864. The cubic root of 214569149 is about 598.6722017167.

The spelling of 214569149 in words is "two hundred fourteen million, five hundred sixty-nine thousand, one hundred forty-nine".