948090181 has 2 divisors, whose sum is σ = 948090182. Its totient is φ = 948090180.

The previous prime is 948090173. The next prime is 948090217. The reversal of 948090181 is 181090849.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 817445281 + 130644900 = 28591^2 + 11430^2 .

It is a cyclic number.

It is not a de Polignac number, because 948090181 - 2³ = 948090173 is a prime.

It is a super-2 number, since 2×948090181² = 1797749982617225522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948090581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474045090 + 474045091.

It is an arithmetic number, because the mean of its divisors is an integer number (474045091).

Almost surely, 2^948090181 is an apocalyptic number.

It is an amenable number.

948090181 is a deficient number, since it is larger than the sum of its proper divisors (1).

948090181 is an equidigital number, since it uses as much as digits as its factorization.

948090181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 948090181 is about 30791.0730732139. The cubic root of 948090181 is about 982.3883786545.

The spelling of 948090181 in words is "nine hundred forty-eight million, ninety thousand, one hundred eighty-one".