138094917 has 8 divisors (see below), whose sum is σ = 184897920. Its totient is φ = 91677600.

The previous prime is 138094877. The next prime is 138094919. The reversal of 138094917 is 719490831.

It is a happy number.

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

It is not a de Polignac number, because 138094917 - 2¹⁴ = 138078533 is a prime.

It is a super-2 number, since 2×138094917² = 38140412202473778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138094919) 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, 95584 + ... + 97017.

It is an arithmetic number, because the mean of its divisors is an integer number (23112240).

Almost surely, 2^138094917 is an apocalyptic number.

It is an amenable number.

138094917 is a deficient number, since it is larger than the sum of its proper divisors (46803003).

138094917 is a wasteful number, since it uses less digits than its factorization.

138094917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192843.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 138094917 is about 11751.3793658447. The cubic root of 138094917 is about 516.8833758044.

The spelling of 138094917 in words is "one hundred thirty-eight million, ninety-four thousand, nine hundred seventeen".