139794682 has 8 divisors (see below), whose sum is σ = 209748852. Its totient is φ = 69878400.

The previous prime is 139794679. The next prime is 139794691. The reversal of 139794682 is 286497931.

It can be written as a sum of positive squares in 2 ways, for example, as 128845201 + 10949481 = 11351^2 + 3309^2 .

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

It is a super-2 number, since 2×139794682² = 39085106230962248, which contains 22 as substring.

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, 3082 + ... + 17002.

Almost surely, 2^139794682 is an apocalyptic number.

139794682 is a deficient number, since it is larger than the sum of its proper divisors (69954170).

139794682 is a wasteful number, since it uses less digits than its factorization.

139794682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18944.

The product of its digits is 653184, while the sum is 49.

The square root of 139794682 is about 11823.4801137398. The cubic root of 139794682 is about 518.9954496849.

The spelling of 139794682 in words is "one hundred thirty-nine million, seven hundred ninety-four thousand, six hundred eighty-two".