1010189 has 4 divisors (see below), whose sum is σ = 1012956. Its totient is φ = 1007424.

The previous prime is 1010179. The next prime is 1010201. The reversal of 1010189 is 9810101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9810101 = 7 ⋅1401443.

It can be written as a sum of positive squares in 2 ways, for example, as 218089 + 792100 = 467^2 + 890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010189 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1010189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010129) 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 3 ways as a sum of consecutive naturals, for example, 734 + ... + 1599.

It is an arithmetic number, because the mean of its divisors is an integer number (253239).

2^1010189 is an apocalyptic number.

It is an amenable number.

1010189 is a deficient number, since it is larger than the sum of its proper divisors (2767).

1010189 is an equidigital number, since it uses as much as digits as its factorization.

1010189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 1010189 is about 1005.0815887280. The cubic root of 1010189 is about 100.3384863108.

The spelling of 1010189 in words is "one million, ten thousand, one hundred eighty-nine".