139955086 has 8 divisors (see below), whose sum is σ = 213893784. Its totient is φ = 68657160.

The previous prime is 139955071. The next prime is 139955093. The reversal of 139955086 is 680559931.

139955086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660060 + ... + 660271.

It is an arithmetic number, because the mean of its divisors is an integer number (26736723).

Almost surely, 2^139955086 is an apocalyptic number.

139955086 is a deficient number, since it is larger than the sum of its proper divisors (73938698).

139955086 is a wasteful number, since it uses less digits than its factorization.

139955086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320386.

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 139955086 is about 11830.2614510416. The cubic root of 139955086 is about 519.1938767032.

The spelling of 139955086 in words is "one hundred thirty-nine million, nine hundred fifty-five thousand, eighty-six".