183541661 has 2 divisors, whose sum is σ = 183541662. Its totient is φ = 183541660.

The previous prime is 183541621. The next prime is 183541697. The reversal of 183541661 is 166145381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148376761 + 35164900 = 12181^2 + 5930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-183541661 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (183541621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91770830 + 91770831.

It is an arithmetic number, because the mean of its divisors is an integer number (91770831).

Almost surely, 2^183541661 is an apocalyptic number.

It is an amenable number.

183541661 is a deficient number, since it is larger than the sum of its proper divisors (1).

183541661 is an equidigital number, since it uses as much as digits as its factorization.

183541661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 183541661 is about 13547.7548324436. The cubic root of 183541661 is about 568.3007369347.

The spelling of 183541661 in words is "one hundred eighty-three million, five hundred forty-one thousand, six hundred sixty-one".