9184390121 has 8 divisors (see below), whose sum is σ = 9201758760. Its totient is φ = 9167037952.

The previous prime is 9184390079. The next prime is 9184390133. The reversal of 9184390121 is 1210934819.

It can be written as a sum of positive squares in 4 ways, for example, as 1082410000 + 8101980121 = 32900^2 + 90011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9184390121 - 2³⁰ = 8110648297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9184390151) 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 in 7 ways as a sum of consecutive naturals, for example, 1739141 + ... + 1744413.

It is an arithmetic number, because the mean of its divisors is an integer number (1150219845).

Almost surely, 2^9184390121 is an apocalyptic number.

It is an amenable number.

9184390121 is a deficient number, since it is larger than the sum of its proper divisors (17368639).

9184390121 is a wasteful number, since it uses less digits than its factorization.

9184390121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8235.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 9184390121 is about 95835.2238010639. The cubic root of 9184390121 is about 2094.1933407291.

The spelling of 9184390121 in words is "nine billion, one hundred eighty-four million, three hundred ninety thousand, one hundred twenty-one".