121404686 has 8 divisors (see below), whose sum is σ = 196115304. Its totient is φ = 56032920.

The previous prime is 121404683. The next prime is 121404709. The reversal of 121404686 is 686404121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121404683) 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, 2334680 + ... + 2334731.

It is an arithmetic number, because the mean of its divisors is an integer number (24514413).

Almost surely, 2^121404686 is an apocalyptic number.

121404686 is a deficient number, since it is larger than the sum of its proper divisors (74710618).

121404686 is a wasteful number, since it uses less digits than its factorization.

121404686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669426.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 121404686 is about 11018.3794634238. The cubic root of 121404686 is about 495.1595390928.

The spelling of 121404686 in words is "one hundred twenty-one million, four hundred four thousand, six hundred eighty-six".