602091181 has 2 divisors, whose sum is σ = 602091182. Its totient is φ = 602091180.

The previous prime is 602091179. The next prime is 602091187. The reversal of 602091181 is 181190206.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 496844100 + 105247081 = 22290^2 + 10259^2 .

It is a cyclic number.

It is not a de Polignac number, because 602091181 - 2¹ = 602091179 is a prime.

It is a super-2 number, since 2×602091181² = 725027580475949522, which contains 22 as substring.

Together with 602091179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (602091187) 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, 301045590 + 301045591.

It is an arithmetic number, because the mean of its divisors is an integer number (301045591).

Almost surely, 2^602091181 is an apocalyptic number.

It is an amenable number.

602091181 is a deficient number, since it is larger than the sum of its proper divisors (1).

602091181 is an equidigital number, since it uses as much as digits as its factorization.

602091181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 602091181 is about 24537.5463524779. The cubic root of 602091181 is about 844.4114015419.

The spelling of 602091181 in words is "six hundred two million, ninety-one thousand, one hundred eighty-one".