139261408082 has 8 divisors (see below), whose sum is σ = 208896899916. Its totient is φ = 69629108112.

The previous prime is 139261408019. The next prime is 139261408103. The reversal of 139261408082 is 280804162931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131922230521 + 7339177561 = 363211^2 + 85669^2 .

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

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, 685733 + ... + 865304.

Almost surely, 2^139261408082 is an apocalyptic number.

139261408082 is a deficient number, since it is larger than the sum of its proper divisors (69635491834).

139261408082 is a wasteful number, since it uses less digits than its factorization.

139261408082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595932.

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

The spelling of 139261408082 in words is "one hundred thirty-nine billion, two hundred sixty-one million, four hundred eight thousand, eighty-two".