3112704521 has 4 divisors (see below), whose sum is σ = 3115405332. Its totient is φ = 3110003712.

The previous prime is 3112704509. The next prime is 3112704547. The reversal of 3112704521 is 1254072113.

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 1813822921 + 1298881600 = 42589^2 + 36040^2 .

It is a cyclic number.

It is not a de Polignac number, because 3112704521 - 2⁶ = 3112704457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112704571) 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, 1348676 + ... + 1350981.

It is an arithmetic number, because the mean of its divisors is an integer number (778851333).

Almost surely, 2^3112704521 is an apocalyptic number.

It is an amenable number.

3112704521 is a deficient number, since it is larger than the sum of its proper divisors (2700811).

3112704521 is a wasteful number, since it uses less digits than its factorization.

3112704521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700810.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 3112704521 is about 55791.6169419744. The cubic root of 3112704521 is about 1460.0888982274.

Adding to 3112704521 its reverse (1254072113), we get a palindrome (4366776634).

The spelling of 3112704521 in words is "three billion, one hundred twelve million, seven hundred four thousand, five hundred twenty-one".