5140423 has 4 divisors (see below), whose sum is σ = 5146240. Its totient is φ = 5134608.

The previous prime is 5140411. The next prime is 5140459. The reversal of 5140423 is 3240415.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5140423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5140423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5140403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278 + ... + 3451.

It is an arithmetic number, because the mean of its divisors is an integer number (1286560).

Almost surely, 2^5140423 is an apocalyptic number.

5140423 is a deficient number, since it is larger than the sum of its proper divisors (5817).

5140423 is a wasteful number, since it uses less digits than its factorization.

5140423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5816.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 5140423 is about 2267.2500964825. The cubic root of 5140423 is about 172.5836379399.

Adding to 5140423 its reverse (3240415), we get a palindrome (8380838).

The spelling of 5140423 in words is "five million, one hundred forty thousand, four hundred twenty-three".