2009027181 has 12 divisors (see below), whose sum is σ = 3061687776. Its totient is φ = 1147898160.

The previous prime is 2009027179. The next prime is 2009027219. The reversal of 2009027181 is 1817209002.

It is not a de Polignac number, because 2009027181 - 2¹ = 2009027179 is a prime.

It is a super-2 number, since 2×2009027181² = 8072380427993613522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2007027181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200511 + ... + 210291.

It is an arithmetic number, because the mean of its divisors is an integer number (255140648).

Almost surely, 2^2009027181 is an apocalyptic number.

2009027181 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2009027181 is a deficient number, since it is larger than the sum of its proper divisors (1052660595).

2009027181 is an frugal number, since it uses more digits than its factorization.

2009027181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19572 (or 9791 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 2009027181 is about 44822.1728723631. The cubic root of 2009027181 is about 1261.8137942809.

The spelling of 2009027181 in words is "two billion, nine million, twenty-seven thousand, one hundred eighty-one".