5140123 has 2 divisors, whose sum is σ = 5140124. Its totient is φ = 5140122.

The previous prime is 5140117. The next prime is 5140133. The reversal of 5140123 is 3210415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5140123 - 2⁹ = 5139611 is a prime.

It is an Ulam number.

5140123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5140097 and 5140106.

It is not a weakly prime, because it can be changed into another prime (5140133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2570061 + 2570062.

It is an arithmetic number, because the mean of its divisors is an integer number (2570062).

Almost surely, 2^5140123 is an apocalyptic number.

5140123 is a deficient number, since it is larger than the sum of its proper divisors (1).

5140123 is an equidigital number, since it uses as much as digits as its factorization.

5140123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 5140123 is about 2267.1839360758. The cubic root of 5140123 is about 172.5802804925.

Adding to 5140123 its reverse (3210415), we get a palindrome (8350538).

The spelling of 5140123 in words is "five million, one hundred forty thousand, one hundred twenty-three".