121667317 has 8 divisors (see below), whose sum is σ = 135604800. Its totient is φ = 108483264.

The previous prime is 121667303. The next prime is 121667321. The reversal of 121667317 is 713766121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121667317 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 (121667387) 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, 188017 + ... + 188662.

It is an arithmetic number, because the mean of its divisors is an integer number (16950600).

Almost surely, 2^121667317 is an apocalyptic number.

121667317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

121667317 is a deficient number, since it is larger than the sum of its proper divisors (13937483).

121667317 is a wasteful number, since it uses less digits than its factorization.

121667317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376715.

The product of its digits is 10584, while the sum is 34.

The square root of 121667317 is about 11030.2908846503. The cubic root of 121667317 is about 495.5163363691.

The spelling of 121667317 in words is "one hundred twenty-one million, six hundred sixty-seven thousand, three hundred seventeen".