3194081281 has 16 divisors (see below), whose sum is σ = 3276270144. Its totient is φ = 3113155584.

The previous prime is 3194081273. The next prime is 3194081291. The reversal of 3194081281 is 1821804913.

It is a cyclic number.

It is not a de Polignac number, because 3194081281 - 2³ = 3194081273 is a prime.

It is a super-2 number, since 2×3194081281² = 20404310459269201922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3194081281.

It is not an unprimeable number, because it can be changed into a prime (3194081221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4967146 + ... + 4967788.

It is an arithmetic number, because the mean of its divisors is an integer number (204766884).

Almost surely, 2^3194081281 is an apocalyptic number.

It is an amenable number.

3194081281 is a deficient number, since it is larger than the sum of its proper divisors (82188863).

3194081281 is an equidigital number, since it uses as much as digits as its factorization.

3194081281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 3194081281 is about 56516.2037030089. The cubic root of 3194081281 is about 1472.7035076058.

The spelling of 3194081281 in words is "three billion, one hundred ninety-four million, eighty-one thousand, two hundred eighty-one".