5105639 has 16 divisors (see below), whose sum is σ = 6475776. Its totient is φ = 3909600.

The previous prime is 5105629. The next prime is 5105641. The reversal of 5105639 is 9365015.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5105639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5105629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4154 + ... + 5240.

It is an arithmetic number, because the mean of its divisors is an integer number (404736).

Almost surely, 2^5105639 is an apocalyptic number.

5105639 is a deficient number, since it is larger than the sum of its proper divisors (1370137).

5105639 is a wasteful number, since it uses less digits than its factorization.

5105639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 5105639 is about 2259.5661087917. The cubic root of 5105639 is about 172.1934793209.

Subtracting from 5105639 its sum of digits (29), we obtain a triangular number (5105610 = T₃₁₉₅).

The spelling of 5105639 in words is "five million, one hundred five thousand, six hundred thirty-nine".