385631543 has 16 divisors (see below), whose sum is σ = 444787200. Its totient is φ = 330655680.

The previous prime is 385631539. The next prime is 385631579. The reversal of 385631543 is 345136583.

It is a cyclic number.

It is not a de Polignac number, because 385631543 - 2² = 385631539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385631497 and 385631506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385631503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44738 + ... + 52656.

It is an arithmetic number, because the mean of its divisors is an integer number (27799200).

Almost surely, 2^385631543 is an apocalyptic number.

385631543 is a deficient number, since it is larger than the sum of its proper divisors (59155657).

385631543 is a wasteful number, since it uses less digits than its factorization.

385631543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8182.

The product of its digits is 129600, while the sum is 38.

The square root of 385631543 is about 19637.5034818584. The cubic root of 385631543 is about 727.8761959649.

The spelling of 385631543 in words is "three hundred eighty-five million, six hundred thirty-one thousand, five hundred forty-three".