5139406 has 16 divisors (see below), whose sum is σ = 8281440. Its totient is φ = 2383360.

The previous prime is 5139401. The next prime is 5139413. The reversal of 5139406 is 6049315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5139401) 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, 1350 + ... + 3478.

It is an arithmetic number, because the mean of its divisors is an integer number (517590).

Almost surely, 2^5139406 is an apocalyptic number.

5139406 is a deficient number, since it is larger than the sum of its proper divisors (3142034).

5139406 is a wasteful number, since it uses less digits than its factorization.

5139406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 5139406 is about 2267.0258048818. The cubic root of 5139406 is about 172.5722556641.

Subtracting 5139406 from its reverse (6049315), we obtain a palindrome (909909).

The spelling of 5139406 in words is "five million, one hundred thirty-nine thousand, four hundred six".