121168135 has 8 divisors (see below), whose sum is σ = 158620176. Its totient is φ = 88122240.

The previous prime is 121168127. The next prime is 121168139. The reversal of 121168135 is 531861121.

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

It is not a de Polignac number, because 121168135 - 2³ = 121168127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121168139) 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, 1101474 + ... + 1101583.

It is an arithmetic number, because the mean of its divisors is an integer number (19827522).

Almost surely, 2^121168135 is an apocalyptic number.

121168135 is a deficient number, since it is larger than the sum of its proper divisors (37452041).

121168135 is a wasteful number, since it uses less digits than its factorization.

121168135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203073.

The product of its digits is 1440, while the sum is 28.

The square root of 121168135 is about 11007.6398469427. The cubic root of 121168135 is about 494.8377320721.

The spelling of 121168135 in words is "one hundred twenty-one million, one hundred sixty-eight thousand, one hundred thirty-five".