389139038149 has 2 divisors, whose sum is σ = 389139038150. Its totient is φ = 389139038148.

The previous prime is 389139038143. The next prime is 389139038243. The reversal of 389139038149 is 941830931983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375407417025 + 13731621124 = 612705^2 + 117182^2 .

It is an emirp because it is prime and its reverse (941830931983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389139038149 - 2⁷ = 389139038021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389139038093 and 389139038102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389139038143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194569519074 + 194569519075.

It is an arithmetic number, because the mean of its divisors is an integer number (194569519075).

Almost surely, 2^389139038149 is an apocalyptic number.

It is an amenable number.

389139038149 is a deficient number, since it is larger than the sum of its proper divisors (1).

389139038149 is an equidigital number, since it uses as much as digits as its factorization.

389139038149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5038848, while the sum is 58.

The spelling of 389139038149 in words is "three hundred eighty-nine billion, one hundred thirty-nine million, thirty-eight thousand, one hundred forty-nine".