214740161 has 2 divisors, whose sum is σ = 214740162. Its totient is φ = 214740160.

The previous prime is 214740103. The next prime is 214740181. The reversal of 214740161 is 161047412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210250000 + 4490161 = 14500^2 + 2119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214740161 is a prime.

It is a super-2 number, since 2×214740161² = 92226673492611842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 214740161.

It is not a weakly prime, because it can be changed into another prime (214740101) 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, 107370080 + 107370081.

It is an arithmetic number, because the mean of its divisors is an integer number (107370081).

Almost surely, 2^214740161 is an apocalyptic number.

It is an amenable number.

214740161 is a deficient number, since it is larger than the sum of its proper divisors (1).

214740161 is an equidigital number, since it uses as much as digits as its factorization.

214740161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 214740161 is about 14654.0151835598. The cubic root of 214740161 is about 598.8312070910.

Adding to 214740161 its reverse (161047412), we get a palindrome (375787573).

The spelling of 214740161 in words is "two hundred fourteen million, seven hundred forty thousand, one hundred sixty-one".