182500081 has 2 divisors, whose sum is σ = 182500082. Its totient is φ = 182500080.

The previous prime is 182500079. The next prime is 182500093. The reversal of 182500081 is 180005281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147501025 + 34999056 = 12145^2 + 5916^2 .

It is an emirp because it is prime and its reverse (180005281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 182500081 - 2¹ = 182500079 is a prime.

It is a super-2 number, since 2×182500081² = 66612559130013122, which contains 22 as substring.

Together with 182500079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (182500001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91250040 + 91250041.

It is an arithmetic number, because the mean of its divisors is an integer number (91250041).

Almost surely, 2^182500081 is an apocalyptic number.

It is an amenable number.

182500081 is a deficient number, since it is larger than the sum of its proper divisors (1).

182500081 is an equidigital number, since it uses as much as digits as its factorization.

182500081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 182500081 is about 13509.2590840505. The cubic root of 182500081 is about 567.2236809371.

The spelling of 182500081 in words is "one hundred eighty-two million, five hundred thousand, eighty-one".