2194606481 has 4 divisors (see below), whose sum is σ = 2195207652. Its totient is φ = 2194005312.

The previous prime is 2194606471. The next prime is 2194606489. The reversal of 2194606481 is 1846064912.

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 278355856 + 1916250625 = 16684^2 + 43775^2 .

It is a cyclic number.

It is not a de Polignac number, because 2194606481 - 2⁶ = 2194606417 is a prime.

It is a super-2 number, since 2×2194606481² = 9632595212894406722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2194606489) 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 3 ways as a sum of consecutive naturals, for example, 295076 + ... + 302421.

It is an arithmetic number, because the mean of its divisors is an integer number (548801913).

Almost surely, 2^2194606481 is an apocalyptic number.

It is an amenable number.

2194606481 is a deficient number, since it is larger than the sum of its proper divisors (601171).

2194606481 is an equidigital number, since it uses as much as digits as its factorization.

2194606481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601170.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 2194606481 is about 46846.6272105047. The cubic root of 2194606481 is about 1299.5277339779.

The spelling of 2194606481 in words is "two billion, one hundred ninety-four million, six hundred six thousand, four hundred eighty-one".