2981230065 has 72 divisors (see below), whose sum is σ = 5716488960. Its totient is φ = 1436149440.

The previous prime is 2981230061. The next prime is 2981230097. The reversal of 2981230065 is 5600321892.

2981230065 is a `hidden beast` number, since 298 + 1 + 2 + 300 + 65 = 666.

It is not a de Polignac number, because 2981230065 - 2² = 2981230061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2981230061) 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 in 71 ways as a sum of consecutive naturals, for example, 885856 + ... + 889214.

It is an arithmetic number, because the mean of its divisors is an integer number (79395680).

Almost surely, 2^2981230065 is an apocalyptic number.

It is an amenable number.

2981230065 is a deficient number, since it is larger than the sum of its proper divisors (2735258895).

2981230065 is a wasteful number, since it uses less digits than its factorization.

2981230065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2981230065 is about 54600.6416171092. The cubic root of 2981230065 is about 1439.2353941421.

The spelling of 2981230065 in words is "two billion, nine hundred eighty-one million, two hundred thirty thousand, sixty-five".