814189 has 4 divisors (see below), whose sum is σ = 816156. Its totient is φ = 812224.

The previous prime is 814183. The next prime is 814193. The reversal of 814189 is 981418.

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 697225 + 116964 = 835^2 + 342^2 .

It is a cyclic number.

It is not a de Polignac number, because 814189 - 2⁷ = 814061 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 814189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814183) 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, 94 + ... + 1279.

It is an arithmetic number, because the mean of its divisors is an integer number (204039).

2⁸¹⁴¹⁸⁹ is an apocalyptic number.

It is an amenable number.

814189 is a deficient number, since it is larger than the sum of its proper divisors (1967).

814189 is a wasteful number, since it uses less digits than its factorization.

814189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966.

The product of its digits is 2304, while the sum is 31.

The square root of 814189 is about 902.3242211090. The cubic root of 814189 is about 93.3773927466.

The spelling of 814189 in words is "eight hundred fourteen thousand, one hundred eighty-nine".