819141 has 4 divisors (see below), whose sum is σ = 1092192. Its totient is φ = 546092.

The previous prime is 819131. The next prime is 819149. The reversal of 819141 is 141918.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 819141 - 2¹¹ = 817093 is a prime.

It is a D-number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819149) by changing a digit.

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, 136521 + ... + 136526.

It is an arithmetic number, because the mean of its divisors is an integer number (273048).

2⁸¹⁹¹⁴¹ is an apocalyptic number.

It is an amenable number.

819141 is a deficient number, since it is larger than the sum of its proper divisors (273051).

819141 is a wasteful number, since it uses less digits than its factorization.

819141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273050.

The product of its digits is 288, while the sum is 24.

The square root of 819141 is about 905.0640861287. The cubic root of 819141 is about 93.5663212532.

The spelling of 819141 in words is "eight hundred nineteen thousand, one hundred forty-one".