5312421 has 6 divisors (see below), whose sum is σ = 7673510. Its totient is φ = 3541608.

The previous prime is 5312393. The next prime is 5312453. The reversal of 5312421 is 1242135.

It can be written as a sum of positive squares in only one way, i.e., 5239521 + 72900 = 2289^2 + 270^2 .

It is not a de Polignac number, because 5312421 - 2⁶ = 5312357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5312394 and 5312403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5312491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 295126 + ... + 295143.

Almost surely, 2^5312421 is an apocalyptic number.

It is an amenable number.

5312421 is a deficient number, since it is larger than the sum of its proper divisors (2361089).

5312421 is a wasteful number, since it uses less digits than its factorization.

5312421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590275 (or 590272 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 5312421 is about 2304.8689767533. The cubic root of 5312421 is about 174.4874362539.

Adding to 5312421 its reverse (1242135), we get a palindrome (6554556).

The spelling of 5312421 in words is "five million, three hundred twelve thousand, four hundred twenty-one".