387146161 has 2 divisors, whose sum is σ = 387146162. Its totient is φ = 387146160.

The previous prime is 387146159. The next prime is 387146171. The reversal of 387146161 is 161641783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321843600 + 65302561 = 17940^2 + 8081^2 .

It is a cyclic number.

It is not a de Polignac number, because 387146161 - 2¹ = 387146159 is a prime.

Together with 387146159, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 387146161.

It is not a weakly prime, because it can be changed into another prime (387146171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193573080 + 193573081.

It is an arithmetic number, because the mean of its divisors is an integer number (193573081).

Almost surely, 2^387146161 is an apocalyptic number.

It is an amenable number.

387146161 is a deficient number, since it is larger than the sum of its proper divisors (1).

387146161 is an equidigital number, since it uses as much as digits as its factorization.

387146161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 387146161 is about 19676.0301128048. The cubic root of 387146161 is about 728.8278938615.

The spelling of 387146161 in words is "three hundred eighty-seven million, one hundred forty-six thousand, one hundred sixty-one".