121797382 has 8 divisors (see below), whose sum is σ = 208795536. Its totient is φ = 52198872.

The previous prime is 121797359. The next prime is 121797383. The reversal of 121797382 is 283797121.

It is a happy number.

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 (121797383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4349893 + ... + 4349920.

It is an arithmetic number, because the mean of its divisors is an integer number (26099442).

Almost surely, 2^121797382 is an apocalyptic number.

121797382 is a deficient number, since it is larger than the sum of its proper divisors (86998154).

121797382 is an equidigital number, since it uses as much as digits as its factorization.

121797382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8699822.

The product of its digits is 42336, while the sum is 40.

The square root of 121797382 is about 11036.1851198682. The cubic root of 121797382 is about 495.6928460558.

The spelling of 121797382 in words is "one hundred twenty-one million, seven hundred ninety-seven thousand, three hundred eighty-two".