138413717 has 8 divisors (see below), whose sum is σ = 149422560. Its totient is φ = 127456560.

The previous prime is 138413669. The next prime is 138413741. The reversal of 138413717 is 717314831.

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

It is a cyclic number.

It is not a de Polignac number, because 138413717 - 2¹⁰ = 138412693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138413017) 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, 7259 + ... + 18152.

It is an arithmetic number, because the mean of its divisors is an integer number (18677820).

Almost surely, 2^138413717 is an apocalyptic number.

It is an amenable number.

138413717 is a deficient number, since it is larger than the sum of its proper divisors (11008843).

138413717 is a wasteful number, since it uses less digits than its factorization.

138413717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25843.

The product of its digits is 14112, while the sum is 35.

The square root of 138413717 is about 11764.9359114277. The cubic root of 138413717 is about 517.2808217132.

The spelling of 138413717 in words is "one hundred thirty-eight million, four hundred thirteen thousand, seven hundred seventeen".