139243907716 has 27 divisors (see below), whose sum is σ = 249533039511. Its totient is φ = 67987166184.

The previous prime is 139243907713. The next prime is 139243907741. The reversal of 139243907716 is 617709342931.

The square root of 139243907716 is 373154.

It is a perfect power (a square), and thus also a powerful number.

139243907716 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139243907713) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32089075 + ... + 32093413.

Almost surely, 2^139243907716 is an apocalyptic number.

139243907716 is the 373154-th square number.

It is an amenable number.

139243907716 is a deficient number, since it is larger than the sum of its proper divisors (110289131795).

139243907716 is an frugal number, since it uses more digits than its factorization.

139243907716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768 (or 4384 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 139243907716 in words is "one hundred thirty-nine billion, two hundred forty-three million, nine hundred seven thousand, seven hundred sixteen".