181126849 has 2 divisors, whose sum is σ = 181126850. Its totient is φ = 181126848.

The previous prime is 181126787. The next prime is 181126853. The reversal of 181126849 is 948621181.

181126849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163021824 + 18105025 = 12768^2 + 4255^2 .

It is a cyclic number.

It is not a de Polignac number, because 181126849 - 2¹⁷ = 180995777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (181126859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90563424 + 90563425.

It is an arithmetic number, because the mean of its divisors is an integer number (90563425).

Almost surely, 2^181126849 is an apocalyptic number.

It is an amenable number.

181126849 is a deficient number, since it is larger than the sum of its proper divisors (1).

181126849 is an equidigital number, since it uses as much as digits as its factorization.

181126849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 40.

The square root of 181126849 is about 13458.3375273471. The cubic root of 181126849 is about 565.7973955098.

The spelling of 181126849 in words is "one hundred eighty-one million, one hundred twenty-six thousand, eight hundred forty-nine".