139934486 has 8 divisors (see below), whose sum is σ = 210085704. Its totient is φ = 69905920.

The previous prime is 139934479. The next prime is 139934491. The reversal of 139934486 is 684439931.

It is a happy number.

139934486 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 self number, because there is not a number n which added to its sum of digits gives 139934486.

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, 27755 + ... + 32406.

It is an arithmetic number, because the mean of its divisors is an integer number (26260713).

Almost surely, 2^139934486 is an apocalyptic number.

139934486 is a deficient number, since it is larger than the sum of its proper divisors (70151218).

139934486 is a wasteful number, since it uses less digits than its factorization.

139934486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61326.

The product of its digits is 559872, while the sum is 47.

The square root of 139934486 is about 11829.3907704497. The cubic root of 139934486 is about 519.1684020575.

Subtracting 139934486 from its reverse (684439931), we obtain a palindrome (544505445).

The spelling of 139934486 in words is "one hundred thirty-nine million, nine hundred thirty-four thousand, four hundred eighty-six".