5421243 has 8 divisors (see below), whose sum is σ = 7265808. Its totient is φ = 3595424.

The previous prime is 5421209. The next prime is 5421263. The reversal of 5421243 is 3421245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5421243 - 2⁹ = 5420731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5421263) 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 7 ways as a sum of consecutive naturals, for example, 3996 + ... + 5177.

It is an arithmetic number, because the mean of its divisors is an integer number (908226).

Almost surely, 2^5421243 is an apocalyptic number.

5421243 is a deficient number, since it is larger than the sum of its proper divisors (1844565).

5421243 is a wasteful number, since it uses less digits than its factorization.

5421243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373.

The product of its digits is 960, while the sum is 21.

The square root of 5421243 is about 2328.3562871691. The cubic root of 5421243 is about 175.6708184976.

Adding to 5421243 its reverse (3421245), we get a palindrome (8842488).

The spelling of 5421243 in words is "five million, four hundred twenty-one thousand, two hundred forty-three".