2011483581 has 16 divisors (see below), whose sum is σ = 2779935744. Its totient is φ = 1292862384.

The previous prime is 2011483489. The next prime is 2011483597. The reversal of 2011483581 is 1853841102.

It is not a de Polignac number, because 2011483581 - 2¹⁴ = 2011467197 is a prime.

It is a super-2 number, since 2×2011483581² = 8092132393265167122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011493581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97015 + ... + 115908.

It is an arithmetic number, because the mean of its divisors is an integer number (173745984).

Almost surely, 2^2011483581 is an apocalyptic number.

It is an amenable number.

2011483581 is a deficient number, since it is larger than the sum of its proper divisors (768452163).

2011483581 is a wasteful number, since it uses less digits than its factorization.

2011483581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213040.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 2011483581 is about 44849.5661183026. The cubic root of 2011483581 is about 1262.3278502130.

The spelling of 2011483581 in words is "two billion, eleven million, four hundred eighty-three thousand, five hundred eighty-one".