139016055 has 16 divisors (see below), whose sum is σ = 235509984. Its totient is φ = 69780480.

The previous prime is 139016029. The next prime is 139016069. The reversal of 139016055 is 550610931.

It is not a de Polignac number, because 139016055 - 2⁷ = 139015927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272326 + ... + 272835.

It is an arithmetic number, because the mean of its divisors is an integer number (14719374).

Almost surely, 2^139016055 is an apocalyptic number.

139016055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139016055 is a deficient number, since it is larger than the sum of its proper divisors (96493929).

139016055 is a wasteful number, since it uses less digits than its factorization.

139016055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545186.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 139016055 is about 11790.5069865549. The cubic root of 139016055 is about 518.0300899820.

Adding to 139016055 its reverse (550610931), we get a palindrome (689626986).

The spelling of 139016055 in words is "one hundred thirty-nine million, sixteen thousand, fifty-five".