139084855 has 32 divisors (see below), whose sum is σ = 206438400. Its totient is φ = 87599232.

The previous prime is 139084853. The next prime is 139084859. The reversal of 139084855 is 558480931.

It is not a de Polignac number, because 139084855 - 2¹ = 139084853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139084853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108106 + ... + 109384.

It is an arithmetic number, because the mean of its divisors is an integer number (6451200).

Almost surely, 2^139084855 is an apocalyptic number.

139084855 is a deficient number, since it is larger than the sum of its proper divisors (67353545).

139084855 is a wasteful number, since it uses less digits than its factorization.

139084855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 139084855 is about 11793.4242270852. The cubic root of 139084855 is about 518.1155347704.

The spelling of 139084855 in words is "one hundred thirty-nine million, eighty-four thousand, eight hundred fifty-five".