139050115647 has 4 divisors (see below), whose sum is σ = 185400154200. Its totient is φ = 92700077096.

The previous prime is 139050115627. The next prime is 139050115649. The reversal of 139050115647 is 746511050931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746511050931 = 3 ⋅248837016977.

It is a cyclic number.

It is not a de Polignac number, because 139050115647 - 2²⁰ = 139049067071 is a prime.

It is a super-2 number, since 2×139050115647² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139050115599 and 139050115608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139050115649) 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, 23175019272 + ... + 23175019277.

It is an arithmetic number, because the mean of its divisors is an integer number (46350038550).

Almost surely, 2^139050115647 is an apocalyptic number.

139050115647 is a deficient number, since it is larger than the sum of its proper divisors (46350038553).

139050115647 is an equidigital number, since it uses as much as digits as its factorization.

139050115647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46350038552.

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 139050115647 in words is "one hundred thirty-nine billion, fifty million, one hundred fifteen thousand, six hundred forty-seven".