389123051 has 2 divisors, whose sum is σ = 389123052. Its totient is φ = 389123050.

The previous prime is 389123029. The next prime is 389123083. The reversal of 389123051 is 150321983.

It is an a-pointer prime, because the next prime (389123083) can be obtained adding 389123051 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389123051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389122999 and 389123017.

It is not a weakly prime, because it can be changed into another prime (389120051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194561525 + 194561526.

It is an arithmetic number, because the mean of its divisors is an integer number (194561526).

Almost surely, 2^389123051 is an apocalyptic number.

389123051 is a deficient number, since it is larger than the sum of its proper divisors (1).

389123051 is an equidigital number, since it uses as much as digits as its factorization.

389123051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 389123051 is about 19726.2021433422. The cubic root of 389123051 is about 730.0663297457.

The spelling of 389123051 in words is "three hundred eighty-nine million, one hundred twenty-three thousand, fifty-one".