139094686 has 8 divisors (see below), whose sum is σ = 208851840. Its totient is φ = 69477408.

The previous prime is 139094677. The next prime is 139094693. The reversal of 139094686 is 686490931.

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

It is a super-3 number, since 3×139094686³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32446 + ... + 36481.

It is an arithmetic number, because the mean of its divisors is an integer number (26106480).

Almost surely, 2^139094686 is an apocalyptic number.

139094686 is a deficient number, since it is larger than the sum of its proper divisors (69757154).

139094686 is a wasteful number, since it uses less digits than its factorization.

139094686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69938.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 139094686 is about 11793.8410197866. The cubic root of 139094686 is about 518.1277418839.

The spelling of 139094686 in words is "one hundred thirty-nine million, ninety-four thousand, six hundred eighty-six".