5400243 has 8 divisors (see below), whose sum is σ = 8000400. Its totient is φ = 3600144.

The previous prime is 5400221. The next prime is 5400257. The reversal of 5400243 is 3420045.

It is a happy number.

It is not a de Polignac number, because 5400243 - 2¹² = 5396147 is a prime.

5400243 is a modest number, since divided by 243 gives 54 as remainder.

5400243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5400443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99978 + ... + 100031.

It is an arithmetic number, because the mean of its divisors is an integer number (1000050).

Almost surely, 2^5400243 is an apocalyptic number.

5400243 is a deficient number, since it is larger than the sum of its proper divisors (2600157).

5400243 is a wasteful number, since it uses less digits than its factorization.

5400243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200018 (or 200012 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 5400243 is about 2323.8422924114. The cubic root of 5400243 is about 175.4436958693.

Adding to 5400243 its reverse (3420045), we get a palindrome (8820288).

It can be divided in two parts, 54002 and 43, that added together give a palindrome (54045).

The spelling of 5400243 in words is "five million, four hundred thousand, two hundred forty-three".