139108634571 has 16 divisors (see below), whose sum is σ = 185671842048. Its totient is φ = 92642316000.

The previous prime is 139108634537. The next prime is 139108634591. The reversal of 139108634571 is 175436801931.

It is not a de Polignac number, because 139108634571 - 2¹⁸ = 139108372427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139108634571.

It is not an unprimeable number, because it can be changed into a prime (139108634591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13854565 + ... + 13864601.

It is an arithmetic number, because the mean of its divisors is an integer number (11604490128).

Almost surely, 2^139108634571 is an apocalyptic number.

139108634571 is a deficient number, since it is larger than the sum of its proper divisors (46563207477).

139108634571 is a wasteful number, since it uses less digits than its factorization.

139108634571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14402.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 139108634571 in words is "one hundred thirty-nine billion, one hundred eight million, six hundred thirty-four thousand, five hundred seventy-one".