385309543 has 2 divisors, whose sum is σ = 385309544. Its totient is φ = 385309542.

The previous prime is 385309469. The next prime is 385309553. The reversal of 385309543 is 345903583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385309543 - 2¹³ = 385301351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385309496 and 385309505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385309553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192654771 + 192654772.

It is an arithmetic number, because the mean of its divisors is an integer number (192654772).

Almost surely, 2^385309543 is an apocalyptic number.

385309543 is a deficient number, since it is larger than the sum of its proper divisors (1).

385309543 is an equidigital number, since it uses as much as digits as its factorization.

385309543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 385309543 is about 19629.3031715341. The cubic root of 385309543 is about 727.6735488147.

The spelling of 385309543 in words is "three hundred eighty-five million, three hundred nine thousand, five hundred forty-three".