139236794 has 8 divisors (see below), whose sum is σ = 208908480. Its totient is φ = 69600636.

The previous prime is 139236793. The next prime is 139236829. The reversal of 139236794 is 497632931.

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

It is not an unprimeable number, because it can be changed into a prime (139236791) by changing a digit.

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, 5717 + ... + 17639.

It is an arithmetic number, because the mean of its divisors is an integer number (26113560).

Almost surely, 2^139236794 is an apocalyptic number.

139236794 is a deficient number, since it is larger than the sum of its proper divisors (69671686).

139236794 is a wasteful number, since it uses less digits than its factorization.

139236794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17764.

The product of its digits is 244944, while the sum is 44.

The square root of 139236794 is about 11799.8641517604. The cubic root of 139236794 is about 518.3041326060.

The spelling of 139236794 in words is "one hundred thirty-nine million, two hundred thirty-six thousand, seven hundred ninety-four".