138841719 has 8 divisors (see below), whose sum is σ = 185456880. Its totient is φ = 92393856.

The previous prime is 138841697. The next prime is 138841739. The reversal of 138841719 is 917148831.

138841719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138841719 - 2¹¹ = 138839671 is a prime.

It is a super-2 number, since 2×138841719² = 38554045869749922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138841739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39874 + ... + 43215.

It is an arithmetic number, because the mean of its divisors is an integer number (23182110).

Almost surely, 2^138841719 is an apocalyptic number.

138841719 is a deficient number, since it is larger than the sum of its proper divisors (46615161).

138841719 is an equidigital number, since it uses as much as digits as its factorization.

138841719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83649.

The product of its digits is 48384, while the sum is 42.

The square root of 138841719 is about 11783.1116009312. Note that the first 3 decimals coincide. The cubic root of 138841719 is about 517.8134505625.

The spelling of 138841719 in words is "one hundred thirty-eight million, eight hundred forty-one thousand, seven hundred nineteen".