9161387 has 2 divisors, whose sum is σ = 9161388. Its totient is φ = 9161386.

The previous prime is 9161377. The next prime is 9161389. The reversal of 9161387 is 7831619.

9161387 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9161387 - 2⁴ = 9161371 is a prime.

Together with 9161389, 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 (9161389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4580693 + 4580694.

It is an arithmetic number, because the mean of its divisors is an integer number (4580694).

Almost surely, 2^9161387 is an apocalyptic number.

9161387 is a deficient number, since it is larger than the sum of its proper divisors (1).

9161387 is an equidigital number, since it uses as much as digits as its factorization.

9161387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 35.

The square root of 9161387 is about 3026.7783202607. The cubic root of 9161387 is about 209.2443514627.

The spelling of 9161387 in words is "nine million, one hundred sixty-one thousand, three hundred eighty-seven".