121163439 has 8 divisors (see below), whose sum is σ = 161619840. Its totient is φ = 80741336.

The previous prime is 121163351. The next prime is 121163453. The reversal of 121163439 is 934361121.

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 121163439 - 2⁸ = 121163183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121165439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294 + ... + 15620.

It is an arithmetic number, because the mean of its divisors is an integer number (20202480).

Almost surely, 2^121163439 is an apocalyptic number.

121163439 is a deficient number, since it is larger than the sum of its proper divisors (40456401).

121163439 is a wasteful number, since it uses less digits than its factorization.

121163439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17149.

The product of its digits is 3888, while the sum is 30.

The square root of 121163439 is about 11007.4265384785. The cubic root of 121163439 is about 494.8313393353.

The spelling of 121163439 in words is "one hundred twenty-one million, one hundred sixty-three thousand, four hundred thirty-nine".