181934531741 has 2 divisors, whose sum is σ = 181934531742. Its totient is φ = 181934531740.

The previous prime is 181934531717. The next prime is 181934531827. The reversal of 181934531741 is 147135439181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161415115225 + 20519416516 = 401765^2 + 143246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181934531741 is a prime.

It is a Sophie Germain 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 (181934531041) 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, 90967265870 + 90967265871.

It is an arithmetic number, because the mean of its divisors is an integer number (90967265871).

Almost surely, 2^181934531741 is an apocalyptic number.

It is an amenable number.

181934531741 is a deficient number, since it is larger than the sum of its proper divisors (1).

181934531741 is an equidigital number, since it uses as much as digits as its factorization.

181934531741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The spelling of 181934531741 in words is "one hundred eighty-one billion, nine hundred thirty-four million, five hundred thirty-one thousand, seven hundred forty-one".