214140169 has 2 divisors, whose sum is σ = 214140170. Its totient is φ = 214140168.

The previous prime is 214140163. The next prime is 214140181. The reversal of 214140169 is 961041412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109998144 + 104142025 = 10488^2 + 10205^2 .

It is a cyclic number.

It is not a de Polignac number, because 214140169 - 2⁹ = 214139657 is a prime.

It is a super-2 number, since 2×214140169² = 91712023958697122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (214140163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107070084 + 107070085.

It is an arithmetic number, because the mean of its divisors is an integer number (107070085).

Almost surely, 2^214140169 is an apocalyptic number.

It is an amenable number.

214140169 is a deficient number, since it is larger than the sum of its proper divisors (1).

214140169 is an equidigital number, since it uses as much as digits as its factorization.

214140169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 214140169 is about 14633.5289318742. The cubic root of 214140169 is about 598.2729679627.

The spelling of 214140169 in words is "two hundred fourteen million, one hundred forty thousand, one hundred sixty-nine".