121159871 has 8 divisors (see below), whose sum is σ = 138552960. Its totient is φ = 103787928.

The previous prime is 121159861. The next prime is 121159891. The reversal of 121159871 is 178951121.

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 121159871 - 2⁶ = 121159807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121159861) 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, 9920 + ... + 18458.

It is an arithmetic number, because the mean of its divisors is an integer number (17319120).

Almost surely, 2^121159871 is an apocalyptic number.

121159871 is a deficient number, since it is larger than the sum of its proper divisors (17393089).

121159871 is an equidigital number, since it uses as much as digits as its factorization.

121159871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10573.

The product of its digits is 5040, while the sum is 35.

The square root of 121159871 is about 11007.2644648886. The cubic root of 121159871 is about 494.8264820517.

It can be divided in two parts, 121 and 159871, that multiplied together give a palindrome (19344391).

The spelling of 121159871 in words is "one hundred twenty-one million, one hundred fifty-nine thousand, eight hundred seventy-one".