121708671 has 8 divisors (see below), whose sum is σ = 185460864. Its totient is φ = 69547800.

The previous prime is 121708597. The next prime is 121708673. The reversal of 121708671 is 176807121.

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

It is not a de Polignac number, because 121708671 - 2⁹ = 121708159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121708673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2897805 + ... + 2897846.

It is an arithmetic number, because the mean of its divisors is an integer number (23182608).

Almost surely, 2^121708671 is an apocalyptic number.

121708671 is a deficient number, since it is larger than the sum of its proper divisors (63752193).

121708671 is an equidigital number, since it uses as much as digits as its factorization.

121708671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5795661.

The product of its (nonzero) digits is 4704, while the sum is 33.

The square root of 121708671 is about 11032.1652906399. The cubic root of 121708671 is about 495.5724710317.

The spelling of 121708671 in words is "one hundred twenty-one million, seven hundred eight thousand, six hundred seventy-one".