139238882 has 8 divisors (see below), whose sum is σ = 208934316. Its totient is φ = 69594112.

The previous prime is 139238873. The next prime is 139238893. The reversal of 139238882 is 288832931.

It can be written as a sum of positive squares in 2 ways, for example, as 87815641 + 51423241 = 9371^2 + 7171^2 .

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

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, 4823 + ... + 17370.

Almost surely, 2^139238882 is an apocalyptic number.

139238882 is a deficient number, since it is larger than the sum of its proper divisors (69695434).

139238882 is a wasteful number, since it uses less digits than its factorization.

139238882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25332.

The product of its digits is 165888, while the sum is 44.

The square root of 139238882 is about 11799.9526270236. The cubic root of 139238882 is about 518.3067234289.

The spelling of 139238882 in words is "one hundred thirty-nine million, two hundred thirty-eight thousand, eight hundred eighty-two".