948486181 has 2 divisors, whose sum is σ = 948486182. Its totient is φ = 948486180.

The previous prime is 948486173. The next prime is 948486197. The reversal of 948486181 is 181684849.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 833245956 + 115240225 = 28866^2 + 10735^2 .

It is an emirp because it is prime and its reverse (181684849) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 948486181 - 2³ = 948486173 is a prime.

It is a super-2 number, since 2×948486181² = 1799252071095929522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948486101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474243090 + 474243091.

It is an arithmetic number, because the mean of its divisors is an integer number (474243091).

Almost surely, 2^948486181 is an apocalyptic number.

It is an amenable number.

948486181 is a deficient number, since it is larger than the sum of its proper divisors (1).

948486181 is an equidigital number, since it uses as much as digits as its factorization.

948486181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 49.

The square root of 948486181 is about 30797.5028370808. The cubic root of 948486181 is about 982.5251348602.

The spelling of 948486181 in words is "nine hundred forty-eight million, four hundred eighty-six thousand, one hundred eighty-one".