3173224021 has 4 divisors (see below), whose sum is σ = 3461698944. Its totient is φ = 2884749100.

The previous prime is 3173223997. The next prime is 3173224031. The reversal of 3173224021 is 1204223713.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3173224021 - 2⁹ = 3173223509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3173224031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144237445 + ... + 144237466.

It is an arithmetic number, because the mean of its divisors is an integer number (865424736).

Almost surely, 2^3173224021 is an apocalyptic number.

It is an amenable number.

3173224021 is a deficient number, since it is larger than the sum of its proper divisors (288474923).

3173224021 is a wasteful number, since it uses less digits than its factorization.

3173224021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288474922.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 3173224021 is about 56331.3768782550. The cubic root of 3173224021 is about 1469.4909340689.

Adding to 3173224021 its reverse (1204223713), we get a palindrome (4377447734).

The spelling of 3173224021 in words is "three billion, one hundred seventy-three million, two hundred twenty-four thousand, twenty-one".