121865834 has 8 divisors (see below), whose sum is σ = 183163680. Its totient is φ = 60811276.

The previous prime is 121865813. The next prime is 121865851. The reversal of 121865834 is 438568121.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 59564 + ... + 61575.

It is an arithmetic number, because the mean of its divisors is an integer number (22895460).

Almost surely, 2^121865834 is an apocalyptic number.

121865834 is a deficient number, since it is larger than the sum of its proper divisors (61297846).

121865834 is a wasteful number, since it uses less digits than its factorization.

121865834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121644.

The product of its digits is 46080, while the sum is 38.

The square root of 121865834 is about 11039.2859370523. The cubic root of 121865834 is about 495.7856909963.

The spelling of 121865834 in words is "one hundred twenty-one million, eight hundred sixty-five thousand, eight hundred thirty-four".