4312546521 has 4 divisors (see below), whose sum is σ = 5750062032. Its totient is φ = 2875031012.

The previous prime is 4312546517. The next prime is 4312546543. The reversal of 4312546521 is 1256452134.

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 4312546521 - 2² = 4312546517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4312546421) 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, 718757751 + ... + 718757756.

It is an arithmetic number, because the mean of its divisors is an integer number (1437515508).

Almost surely, 2^4312546521 is an apocalyptic number.

It is an amenable number.

4312546521 is a deficient number, since it is larger than the sum of its proper divisors (1437515511).

4312546521 is a wasteful number, since it uses less digits than its factorization.

4312546521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437515510.

The product of its digits is 28800, while the sum is 33.

The square root of 4312546521 is about 65669.9818867038. The cubic root of 4312546521 is about 1627.7133708137.

Adding to 4312546521 its reverse (1256452134), we get a palindrome (5568998655).

The spelling of 4312546521 in words is "four billion, three hundred twelve million, five hundred forty-six thousand, five hundred twenty-one".