385142267 has 2 divisors, whose sum is σ = 385142268. Its totient is φ = 385142266.

The previous prime is 385142239. The next prime is 385142273. The reversal of 385142267 is 762241583.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (762241583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385142267 - 2¹⁰ = 385141243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385142267.

It is not a weakly prime, because it can be changed into another prime (385142237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192571133 + 192571134.

It is an arithmetic number, because the mean of its divisors is an integer number (192571134).

Almost surely, 2^385142267 is an apocalyptic number.

385142267 is a deficient number, since it is larger than the sum of its proper divisors (1).

385142267 is an equidigital number, since it uses as much as digits as its factorization.

385142267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 385142267 is about 19625.0418343503. The cubic root of 385142267 is about 727.5682309462.

The spelling of 385142267 in words is "three hundred eighty-five million, one hundred forty-two thousand, two hundred sixty-seven".