385832161 has 16 divisors (see below), whose sum is σ = 453898368. Its totient is φ = 323337600.

The previous prime is 385832143. The next prime is 385832171. The reversal of 385832161 is 161238583.

It is a cyclic number.

It is not a de Polignac number, because 385832161 - 2¹³ = 385823969 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 385832161.

It is not an unprimeable number, because it can be changed into a prime (385832171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146125 + ... + 148741.

It is an arithmetic number, because the mean of its divisors is an integer number (28368648).

Almost surely, 2^385832161 is an apocalyptic number.

385832161 is the 11341-st octagonal number.

It is an amenable number.

385832161 is a deficient number, since it is larger than the sum of its proper divisors (68066207).

385832161 is a wasteful number, since it uses less digits than its factorization.

385832161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672.

The product of its digits is 34560, while the sum is 37.

The square root of 385832161 is about 19642.6108498845. The cubic root of 385832161 is about 728.0023956619.

The spelling of 385832161 in words is "three hundred eighty-five million, eight hundred thirty-two thousand, one hundred sixty-one".