182985661 has 2 divisors, whose sum is σ = 182985662. Its totient is φ = 182985660.

The previous prime is 182985659. The next prime is 182985667. The reversal of 182985661 is 166589281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172423161 + 10562500 = 13131^2 + 3250^2 .

It is a cyclic number.

It is not a de Polignac number, because 182985661 - 2¹ = 182985659 is a prime.

Together with 182985659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (182985667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91492830 + 91492831.

It is an arithmetic number, because the mean of its divisors is an integer number (91492831).

Almost surely, 2^182985661 is an apocalyptic number.

It is an amenable number.

182985661 is a deficient number, since it is larger than the sum of its proper divisors (1).

182985661 is an equidigital number, since it uses as much as digits as its factorization.

182985661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 46.

The square root of 182985661 is about 13527.2192633963. The cubic root of 182985661 is about 567.7263082088.

The spelling of 182985661 in words is "one hundred eighty-two million, nine hundred eighty-five thousand, six hundred sixty-one".