139573409305 has 8 divisors (see below), whose sum is σ = 182714281344. Its totient is φ = 101507934000.

The previous prime is 139573409291. The next prime is 139573409317. The reversal of 139573409305 is 503904375931.

139573409305 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 not a de Polignac number, because 139573409305 - 2⁵ = 139573409273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268849121 + ... + 1268849230.

It is an arithmetic number, because the mean of its divisors is an integer number (22839285168).

Almost surely, 2^139573409305 is an apocalyptic number.

It is an amenable number.

139573409305 is a deficient number, since it is larger than the sum of its proper divisors (43140872039).

139573409305 is a wasteful number, since it uses less digits than its factorization.

139573409305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537698367.

The product of its (nonzero) digits is 1530900, while the sum is 49.

The spelling of 139573409305 in words is "one hundred thirty-nine billion, five hundred seventy-three million, four hundred nine thousand, three hundred five".