138461716 has 6 divisors (see below), whose sum is σ = 242308010. Its totient is φ = 69230856.

The previous prime is 138461711. The next prime is 138461723. The reversal of 138461716 is 617164831.

It can be written as a sum of positive squares in only one way, i.e., 135024400 + 3437316 = 11620^2 + 1854^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138461711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17307711 + ... + 17307718.

Almost surely, 2^138461716 is an apocalyptic number.

It is an amenable number.

138461716 is a deficient number, since it is larger than the sum of its proper divisors (103846294).

138461716 is a wasteful number, since it uses less digits than its factorization.

138461716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34615433 (or 34615431 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 138461716 is about 11766.9756522226. The cubic root of 138461716 is about 517.3406088817.

The spelling of 138461716 in words is "one hundred thirty-eight million, four hundred sixty-one thousand, seven hundred sixteen".