387610512161 has 2 divisors, whose sum is σ = 387610512162. Its totient is φ = 387610512160.

The previous prime is 387610512053. The next prime is 387610512173. The reversal of 387610512161 is 161215016783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 257981710561 + 129628801600 = 507919^2 + 360040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387610512161 is a prime.

It is a super-3 number, since 3×387610512161³ (a number of 36 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (387610512181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193805256080 + 193805256081.

It is an arithmetic number, because the mean of its divisors is an integer number (193805256081).

Almost surely, 2^387610512161 is an apocalyptic number.

It is an amenable number.

387610512161 is a deficient number, since it is larger than the sum of its proper divisors (1).

387610512161 is an equidigital number, since it uses as much as digits as its factorization.

387610512161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 387610512161 in words is "three hundred eighty-seven billion, six hundred ten million, five hundred twelve thousand, one hundred sixty-one".