82214161 has 2 divisors, whose sum is σ = 82214162. Its totient is φ = 82214160.

The previous prime is 82214141. The next prime is 82214219. The reversal of 82214161 is 16141228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67963536 + 14250625 = 8244^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 82214161 - 2⁵ = 82214129 is a prime.

It is not a weakly prime, because it can be changed into another prime (82214131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41107080 + 41107081.

It is an arithmetic number, because the mean of its divisors is an integer number (41107081).

Almost surely, 2^82214161 is an apocalyptic number.

It is an amenable number.

82214161 is a deficient number, since it is larger than the sum of its proper divisors (1).

82214161 is an equidigital number, since it uses as much as digits as its factorization.

82214161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 25.

The square root of 82214161 is about 9067.2024902943. The cubic root of 82214161 is about 434.8260386888.

Adding to 82214161 its reverse (16141228), we get a palindrome (98355389).

The spelling of 82214161 in words is "eighty-two million, two hundred fourteen thousand, one hundred sixty-one".