5182421 has 4 divisors (see below), whose sum is σ = 5455200. Its totient is φ = 4909644.

The previous prime is 5182417. The next prime is 5182427. The reversal of 5182421 is 1242815.

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 5182421 - 2² = 5182417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5182427) 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, 136361 + ... + 136398.

It is an arithmetic number, because the mean of its divisors is an integer number (1363800).

Almost surely, 2^5182421 is an apocalyptic number.

It is an amenable number.

5182421 is a deficient number, since it is larger than the sum of its proper divisors (272779).

5182421 is a wasteful number, since it uses less digits than its factorization.

5182421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272778.

The product of its digits is 640, while the sum is 23.

The square root of 5182421 is about 2276.4931363832. The cubic root of 5182421 is about 173.0523748001.

The spelling of 5182421 in words is "five million, one hundred eighty-two thousand, four hundred twenty-one".