139206057050 has 24 divisors (see below), whose sum is σ = 258935766336. Its totient is φ = 55679734640.

The previous prime is 139206057041. The next prime is 139206057083. The reversal of 139206057050 is 50750602931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 139206056995 and 139206057013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1224737 + ... + 1333563.

It is an arithmetic number, because the mean of its divisors is an integer number (10788990264).

Almost surely, 2^139206057050 is an apocalyptic number.

139206057050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139206057050 is a deficient number, since it is larger than the sum of its proper divisors (119729709286).

139206057050 is a wasteful number, since it uses less digits than its factorization.

139206057050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134422 (or 134417 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

Adding to 139206057050 its reverse (50750602931), we get a palindrome (189956659981).

The spelling of 139206057050 in words is "one hundred thirty-nine billion, two hundred six million, fifty-seven thousand, fifty".