385023539 has 2 divisors, whose sum is σ = 385023540. Its totient is φ = 385023538.

The previous prime is 385023479. The next prime is 385023547. The reversal of 385023539 is 935320583.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385023539 - 2¹² = 385019443 is a prime.

It is not a weakly prime, because it can be changed into another prime (385023559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192511769 + 192511770.

It is an arithmetic number, because the mean of its divisors is an integer number (192511770).

Almost surely, 2^385023539 is an apocalyptic number.

385023539 is a deficient number, since it is larger than the sum of its proper divisors (1).

385023539 is an equidigital number, since it uses as much as digits as its factorization.

385023539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 385023539 is about 19622.0166904424. The cubic root of 385023539 is about 727.4934606546.

The spelling of 385023539 in words is "three hundred eighty-five million, twenty-three thousand, five hundred thirty-nine".