385142423 has 2 divisors, whose sum is σ = 385142424. Its totient is φ = 385142422.

The previous prime is 385142399. The next prime is 385142449. The reversal of 385142423 is 324241583.

It is a weak prime.

It is an emirp because it is prime and its reverse (324241583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385142423 - 2¹⁴ = 385126039 is a prime.

It is equal to p_20585606 and since 385142423 and 20585606 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385142423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385142473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192571211 + 192571212.

It is an arithmetic number, because the mean of its divisors is an integer number (192571212).

Almost surely, 2^385142423 is an apocalyptic number.

385142423 is a deficient number, since it is larger than the sum of its proper divisors (1).

385142423 is an equidigital number, since it uses as much as digits as its factorization.

385142423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 32.

The square root of 385142423 is about 19625.0458088637. The cubic root of 385142423 is about 727.5683291788.

The spelling of 385142423 in words is "three hundred eighty-five million, one hundred forty-two thousand, four hundred twenty-three".