2985994181 has 2 divisors, whose sum is σ = 2985994182. Its totient is φ = 2985994180.

The previous prime is 2985994169. The next prime is 2985994213. The reversal of 2985994181 is 1814995892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2088033025 + 897961156 = 45695^2 + 29966^2 .

It is a cyclic number.

It is not a de Polignac number, because 2985994181 - 2¹⁸ = 2985732037 is a prime.

It is a super-2 number, since 2×2985994181² = 17832322497931721522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2985994981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1492997090 + 1492997091.

It is an arithmetic number, because the mean of its divisors is an integer number (1492997091).

Almost surely, 2^2985994181 is an apocalyptic number.

It is an amenable number.

2985994181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2985994181 is an equidigital number, since it uses as much as digits as its factorization.

2985994181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 56.

The square root of 2985994181 is about 54644.2511248896. The cubic root of 2985994181 is about 1440.0016366044.

The spelling of 2985994181 in words is "two billion, nine hundred eighty-five million, nine hundred ninety-four thousand, one hundred eighty-one".