5240139 has 4 divisors (see below), whose sum is σ = 6986856. Its totient is φ = 3493424.

The previous prime is 5240117. The next prime is 5240141. The reversal of 5240139 is 9310425.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5240139 - 2⁵ = 5240107 is a prime.

It is a D-number.

5240139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5240239) 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, 873354 + ... + 873359.

It is an arithmetic number, because the mean of its divisors is an integer number (1746714).

Almost surely, 2^5240139 is an apocalyptic number.

5240139 is a deficient number, since it is larger than the sum of its proper divisors (1746717).

5240139 is a wasteful number, since it uses less digits than its factorization.

5240139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746716.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 5240139 is about 2289.1349894665. The cubic root of 5240139 is about 173.6924478574.

The spelling of 5240139 in words is "five million, two hundred forty thousand, one hundred thirty-nine".