121684682 has 8 divisors (see below), whose sum is σ = 208602336. Its totient is φ = 52150572.

The previous prime is 121684637. The next prime is 121684687. The reversal of 121684682 is 286486121.

It is a happy number.

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

It is a super-2 number, since 2×121684682² = 29614323666882248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121684687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4345868 + ... + 4345895.

It is an arithmetic number, because the mean of its divisors is an integer number (26075292).

Almost surely, 2^121684682 is an apocalyptic number.

121684682 is a deficient number, since it is larger than the sum of its proper divisors (86917654).

121684682 is an equidigital number, since it uses as much as digits as its factorization.

121684682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8691772.

The product of its digits is 36864, while the sum is 38.

The square root of 121684682 is about 11031.0780071578. The cubic root of 121684682 is about 495.5399094810.

The spelling of 121684682 in words is "one hundred twenty-one million, six hundred eighty-four thousand, six hundred eighty-two".