4139855 has 8 divisors (see below), whose sum is σ = 4979232. Its totient is φ = 3304288.

The previous prime is 4139831. The next prime is 4139873. The reversal of 4139855 is 5589314.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4139855 - 2⁸ = 4139599 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2774 + ... + 3996.

It is an arithmetic number, because the mean of its divisors is an integer number (622404).

Almost surely, 2^4139855 is an apocalyptic number.

4139855 is a deficient number, since it is larger than the sum of its proper divisors (839377).

4139855 is a wasteful number, since it uses less digits than its factorization.

4139855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905.

The product of its digits is 21600, while the sum is 35.

The square root of 4139855 is about 2034.6633628195. The cubic root of 4139855 is about 160.5690027215.

It can be divided in two parts, 4139 and 855, that added together give a palindrome (4994).

The spelling of 4139855 in words is "four million, one hundred thirty-nine thousand, eight hundred fifty-five".