181382084453 has 2 divisors, whose sum is σ = 181382084454. Its totient is φ = 181382084452.

The previous prime is 181382084441. The next prime is 181382084459. The reversal of 181382084453 is 354480283181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113897475169 + 67484609284 = 337487^2 + 259778^2 .

It is a cyclic number.

It is not a de Polignac number, because 181382084453 - 2¹⁴ = 181382068069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 181382084398 and 181382084407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (181382084459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90691042226 + 90691042227.

It is an arithmetic number, because the mean of its divisors is an integer number (90691042227).

Almost surely, 2^181382084453 is an apocalyptic number.

It is an amenable number.

181382084453 is a deficient number, since it is larger than the sum of its proper divisors (1).

181382084453 is an equidigital number, since it uses as much as digits as its factorization.

181382084453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 181382084453 in words is "one hundred eighty-one billion, three hundred eighty-two million, eighty-four thousand, four hundred fifty-three".