121684306 has 8 divisors (see below), whose sum is σ = 190462464. Its totient is φ = 58196820.

The previous prime is 121684289. The next prime is 121684307. The reversal of 121684306 is 603486121.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (121684307) 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, 1322610 + ... + 1322701.

It is an arithmetic number, because the mean of its divisors is an integer number (23807808).

Almost surely, 2^121684306 is an apocalyptic number.

121684306 is a deficient number, since it is larger than the sum of its proper divisors (68778158).

121684306 is a wasteful number, since it uses less digits than its factorization.

121684306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645336.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 121684306 is about 11031.0609643860. The cubic root of 121684306 is about 495.5393990821.

The spelling of 121684306 in words is "one hundred twenty-one million, six hundred eighty-four thousand, three hundred six".