387426161 has 2 divisors, whose sum is σ = 387426162. Its totient is φ = 387426160.

The previous prime is 387426103. The next prime is 387426163. The reversal of 387426161 is 161624783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313998400 + 73427761 = 17720^2 + 8569^2 .

It is an emirp because it is prime and its reverse (161624783) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387426161 is a prime.

Together with 387426163, 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 (387426163) 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 as a sum of consecutive naturals, namely, 193713080 + 193713081.

It is an arithmetic number, because the mean of its divisors is an integer number (193713081).

Almost surely, 2^387426161 is an apocalyptic number.

It is an amenable number.

387426161 is a deficient number, since it is larger than the sum of its proper divisors (1).

387426161 is an equidigital number, since it uses as much as digits as its factorization.

387426161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 387426161 is about 19683.1440831997. The cubic root of 387426161 is about 729.0035576055.

The spelling of 387426161 in words is "three hundred eighty-seven million, four hundred twenty-six thousand, one hundred sixty-one".