138773117 has 8 divisors (see below), whose sum is σ = 158793600. Its totient is φ = 118801584.

The previous prime is 138773113. The next prime is 138773119. The reversal of 138773117 is 711377831.

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 138773117 - 2² = 138773113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138773111) 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, 5942 + ... + 17687.

It is an arithmetic number, because the mean of its divisors is an integer number (19849200).

Almost surely, 2^138773117 is an apocalyptic number.

It is an amenable number.

138773117 is a deficient number, since it is larger than the sum of its proper divisors (20020483).

138773117 is an equidigital number, since it uses as much as digits as its factorization.

138773117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24475.

The product of its digits is 24696, while the sum is 38.

The square root of 138773117 is about 11780.2002105227. The cubic root of 138773117 is about 517.7281522558.

The spelling of 138773117 in words is "one hundred thirty-eight million, seven hundred seventy-three thousand, one hundred seventeen".