385929161 has 2 divisors, whose sum is σ = 385929162. Its totient is φ = 385929160.

The previous prime is 385929157. The next prime is 385929163. The reversal of 385929161 is 161929583.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385926025 + 3136 = 19645^2 + 56^2 .

It is a cyclic number.

It is not a de Polignac number, because 385929161 - 2² = 385929157 is a prime.

Together with 385929163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (385929163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192964580 + 192964581.

It is an arithmetic number, because the mean of its divisors is an integer number (192964581).

Almost surely, 2^385929161 is an apocalyptic number.

It is an amenable number.

385929161 is a deficient number, since it is larger than the sum of its proper divisors (1).

385929161 is an equidigital number, since it uses as much as digits as its factorization.

385929161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 385929161 is about 19645.0798165851. The cubic root of 385929161 is about 728.0633982796.

The spelling of 385929161 in words is "three hundred eighty-five million, nine hundred twenty-nine thousand, one hundred sixty-one".