383123969 has 2 divisors, whose sum is σ = 383123970. Its totient is φ = 383123968.

The previous prime is 383123953. The next prime is 383123971. The reversal of 383123969 is 969321383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350176369 + 32947600 = 18713^2 + 5740^2 .

It is a cyclic number.

It is not a de Polignac number, because 383123969 - 2⁴ = 383123953 is a prime.

It is a super-2 number, since 2×383123969² = 293567951244625922, which contains 22 as substring.

Together with 383123971, 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 (383123369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191561984 + 191561985.

It is an arithmetic number, because the mean of its divisors is an integer number (191561985).

Almost surely, 2^383123969 is an apocalyptic number.

It is an amenable number.

383123969 is a deficient number, since it is larger than the sum of its proper divisors (1).

383123969 is an equidigital number, since it uses as much as digits as its factorization.

383123969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 44.

The square root of 383123969 is about 19573.5527945235. The cubic root of 383123969 is about 726.2950892086.

The spelling of 383123969 in words is "three hundred eighty-three million, one hundred twenty-three thousand, nine hundred sixty-nine".