121683455 has 8 divisors (see below), whose sum is σ = 152368992. Its totient is φ = 93114208.

The previous prime is 121683451. The next prime is 121683473. The reversal of 121683455 is 554386121.

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 121683455 - 2² = 121683451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121683451) 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, 528944 + ... + 529173.

It is an arithmetic number, because the mean of its divisors is an integer number (19046124).

Almost surely, 2^121683455 is an apocalyptic number.

121683455 is a deficient number, since it is larger than the sum of its proper divisors (30685537).

121683455 is a wasteful number, since it uses less digits than its factorization.

121683455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058145.

The product of its digits is 28800, while the sum is 35.

The square root of 121683455 is about 11031.0223914196. The cubic root of 121683455 is about 495.5382438934.

The spelling of 121683455 in words is "one hundred twenty-one million, six hundred eighty-three thousand, four hundred fifty-five".