139816723 has 2 divisors, whose sum is σ = 139816724. Its totient is φ = 139816722.

The previous prime is 139816711. The next prime is 139816741. The reversal of 139816723 is 327618931.

139816723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139816723 - 2¹³ = 139808531 is a prime.

It is not a weakly prime, because it can be changed into another prime (139816753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69908361 + 69908362.

It is an arithmetic number, because the mean of its divisors is an integer number (69908362).

Almost surely, 2^139816723 is an apocalyptic number.

139816723 is a deficient number, since it is larger than the sum of its proper divisors (1).

139816723 is an equidigital number, since it uses as much as digits as its factorization.

139816723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 139816723 is about 11824.4121629788. The cubic root of 139816723 is about 519.0227243934.

The spelling of 139816723 in words is "one hundred thirty-nine million, eight hundred sixteen thousand, seven hundred twenty-three".