5402543 has 2 divisors, whose sum is σ = 5402544. Its totient is φ = 5402542.

The previous prime is 5402533. The next prime is 5402561. The reversal of 5402543 is 3452045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5402543 - 2¹² = 5398447 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5402533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2701271 + 2701272.

It is an arithmetic number, because the mean of its divisors is an integer number (2701272).

Almost surely, 2^5402543 is an apocalyptic number.

5402543 is a deficient number, since it is larger than the sum of its proper divisors (1).

5402543 is an equidigital number, since it uses as much as digits as its factorization.

5402543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 5402543 is about 2324.3371098014. The cubic root of 5402543 is about 175.4685998860.

Adding to 5402543 its reverse (3452045), we get a palindrome (8854588).

The spelling of 5402543 in words is "five million, four hundred two thousand, five hundred forty-three".