121079839 has 8 divisors (see below), whose sum is σ = 122504400. Its totient is φ = 119661696.

The previous prime is 121079821. The next prime is 121079887. The reversal of 121079839 is 938970121.

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 121079839 - 2⁷ = 121079711 is a prime.

It is a super-3 number, since 3×121079839³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121079339) 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, 43512 + ... + 46210.

It is an arithmetic number, because the mean of its divisors is an integer number (15313050).

Almost surely, 2^121079839 is an apocalyptic number.

121079839 is a deficient number, since it is larger than the sum of its proper divisors (1424561).

121079839 is a wasteful number, since it uses less digits than its factorization.

121079839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 121079839 is about 11003.6284470169. The cubic root of 121079839 is about 494.7175057172.

The spelling of 121079839 in words is "one hundred twenty-one million, seventy-nine thousand, eight hundred thirty-nine".