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9995189 = 113197449

9995189 has 8 divisors (see below), whose sum is σ = 10157400. Its totient is φ = 9834496.

The previous prime is 9995149. The next prime is 9995213. The reversal of 9995189 is 9815999.

9995189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1844164 + 8151025 = 1358^2 + 2855^2 .

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

It is a 6-Lehmer number, since φ(9995189) divides (9995189-1)6.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9995189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9995119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22037 + ... + 22485.

It is an arithmetic number, because the mean of its divisors is an integer number (1269675).

Almost surely, 29995189 is an apocalyptic number.

It is an amenable number.

9995189 is a deficient number, since it is larger than the sum of its proper divisors (162211).

9995189 is a wasteful number, since it uses less digits than its factorization.

9995189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 262440, while the sum is 50.

The square root of 9995189 is about 3161.5168827637. The cubic root of 9995189 is about 215.4089135101.

The spelling of 9995189 in words is "nine million, nine hundred ninety-five thousand, one hundred eighty-nine".

Divisors: 1 113 197 449 22261 50737 88453 9995189