385542239 has 2 divisors, whose sum is σ = 385542240. Its totient is φ = 385542238.

The previous prime is 385542217. The next prime is 385542251. The reversal of 385542239 is 932245583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385542239 - 2¹² = 385538143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385542196 and 385542205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385542539) 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, 192771119 + 192771120.

It is an arithmetic number, because the mean of its divisors is an integer number (192771120).

Almost surely, 2^385542239 is an apocalyptic number.

385542239 is a deficient number, since it is larger than the sum of its proper divisors (1).

385542239 is an equidigital number, since it uses as much as digits as its factorization.

385542239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The square root of 385542239 is about 19635.2295377467. The cubic root of 385542239 is about 727.8200047850.

The spelling of 385542239 in words is "three hundred eighty-five million, five hundred forty-two thousand, two hundred thirty-nine".