10185185 has 4 divisors (see below), whose sum is σ = 12222228. Its totient is φ = 8148144.

The previous prime is 10185173. The next prime is 10185191. The reversal of 10185185 is 58158101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3508129 + 6677056 = 1873^2 + 2584^2 .

It is a cyclic number.

It is not a de Polignac number, because 10185185 - 2¹⁶ = 10119649 is a prime.

It is a Duffinian number.

10185185 is a modest number, since divided by 185185 gives 10 as remainder.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1018514 + ... + 1018523.

It is an arithmetic number, because the mean of its divisors is an integer number (3055557).

Almost surely, 2^10185185 is an apocalyptic number.

It is an amenable number.

10185185 is a deficient number, since it is larger than the sum of its proper divisors (2037043).

10185185 is an equidigital number, since it uses as much as digits as its factorization.

10185185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037042.

The product of its (nonzero) digits is 1600, while the sum is 29.

The square root of 10185185 is about 3191.4236635082. The cubic root of 10185185 is about 216.7652398282.

It can be divided in two parts, 10 and 185185, that multiplied together give a triangular number (1851850 = T₁₉₂₄).

The spelling of 10185185 in words is "ten million, one hundred eighty-five thousand, one hundred eighty-five".