139742226729 has 16 divisors (see below), whose sum is σ = 236600595840. Its totient is φ = 79852700880.

The previous prime is 139742226727. The next prime is 139742226737. The reversal of 139742226729 is 927622247931.

It is a happy number.

139742226729 is a `hidden beast` number, since 1 + 397 + 4 + 2 + 226 + 7 + 29 = 666.

It is not a de Polignac number, because 139742226729 - 2¹ = 139742226727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139742226727) 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 15 ways as a sum of consecutive naturals, for example, 369688242 + ... + 369688619.

It is an arithmetic number, because the mean of its divisors is an integer number (14787537240).

Almost surely, 2^139742226729 is an apocalyptic number.

It is an amenable number.

139742226729 is a deficient number, since it is larger than the sum of its proper divisors (96858369111).

139742226729 is an equidigital number, since it uses as much as digits as its factorization.

139742226729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739376877 (or 739376871 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The spelling of 139742226729 in words is "one hundred thirty-nine billion, seven hundred forty-two million, two hundred twenty-six thousand, seven hundred twenty-nine".