9121064387 has 2 divisors, whose sum is σ = 9121064388. Its totient is φ = 9121064386.

The previous prime is 9121064377. The next prime is 9121064413. The reversal of 9121064387 is 7834601219.

9121064387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9121064387 - 2⁴ = 9121064371 is a prime.

It is not a weakly prime, because it can be changed into another prime (9121064317) 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, 4560532193 + 4560532194.

It is an arithmetic number, because the mean of its divisors is an integer number (4560532194).

Almost surely, 2^9121064387 is an apocalyptic number.

9121064387 is a deficient number, since it is larger than the sum of its proper divisors (1).

9121064387 is an equidigital number, since it uses as much as digits as its factorization.

9121064387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 9121064387 is about 95504.2637111035. The cubic root of 9121064387 is about 2089.3691301184.

The spelling of 9121064387 in words is "nine billion, one hundred twenty-one million, sixty-four thousand, three hundred eighty-seven".