383683121 has 2 divisors, whose sum is σ = 383683122. Its totient is φ = 383683120.

The previous prime is 383683087. The next prime is 383683123. The reversal of 383683121 is 121386383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272085025 + 111598096 = 16495^2 + 10564^2 .

It is a cyclic number.

It is not a de Polignac number, because 383683121 - 2¹⁰ = 383682097 is a prime.

Together with 383683123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (383683123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191841560 + 191841561.

It is an arithmetic number, because the mean of its divisors is an integer number (191841561).

Almost surely, 2^383683121 is an apocalyptic number.

It is an amenable number.

383683121 is a deficient number, since it is larger than the sum of its proper divisors (1).

383683121 is an equidigital number, since it uses as much as digits as its factorization.

383683121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 383683121 is about 19587.8309416842. The cubic root of 383683121 is about 726.6482490025.

The spelling of 383683121 in words is "three hundred eighty-three million, six hundred eighty-three thousand, one hundred twenty-one".