3196881361 has 4 divisors (see below), whose sum is σ = 3197228724. Its totient is φ = 3196534000.

The previous prime is 3196881341. The next prime is 3196881371. The reversal of 3196881361 is 1631886913.

It is a happy number.

3196881361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1054950400 + 2141930961 = 32480^2 + 46281^2 .

It is a cyclic number.

It is not a de Polignac number, because 3196881361 - 2¹¹ = 3196879313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3196881341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159490 + ... + 178411.

It is an arithmetic number, because the mean of its divisors is an integer number (799307181).

Almost surely, 2^3196881361 is an apocalyptic number.

It is an amenable number.

3196881361 is a deficient number, since it is larger than the sum of its proper divisors (347363).

3196881361 is an equidigital number, since it uses as much as digits as its factorization.

3196881361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347362.

The product of its digits is 186624, while the sum is 46.

The square root of 3196881361 is about 56540.9706407663. The cubic root of 3196881361 is about 1473.1337286778.

The spelling of 3196881361 in words is "three billion, one hundred ninety-six million, eight hundred eighty-one thousand, three hundred sixty-one".