139046 has 8 divisors (see below), whose sum is σ = 214320. Its totient is φ = 67608.

The previous prime is 139033. The next prime is 139067. The reversal of 139046 is 640931.

139046 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.

139046 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (26790).

2¹³⁹⁰⁴⁶ is an apocalyptic number.

139046 is a deficient number, since it is larger than the sum of its proper divisors (75274).

139046 is a wasteful number, since it uses less digits than its factorization.

139046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 139046 is about 372.8887233479. Note that the first 3 decimals coincide. The cubic root of 139046 is about 51.8067283042.

Adding to 139046 its reverse (640931), we get a palindrome (779977).

The spelling of 139046 in words is "one hundred thirty-nine thousand, forty-six".