121833858 has 8 divisors (see below), whose sum is σ = 243667728. Its totient is φ = 40611284.

The previous prime is 121833853. The next prime is 121833869. The reversal of 121833858 is 858338121.

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

121833858 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (121833853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10152816 + ... + 10152827.

It is an arithmetic number, because the mean of its divisors is an integer number (30458466).

Almost surely, 2^121833858 is an apocalyptic number.

121833858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121833858 is a wasteful number, since it uses less digits than its factorization.

121833858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20305648.

The product of its digits is 46080, while the sum is 39.

The square root of 121833858 is about 11037.8375599571. The cubic root of 121833858 is about 495.7423246442.

The spelling of 121833858 in words is "one hundred twenty-one million, eight hundred thirty-three thousand, eight hundred fifty-eight".