813041 has 2 divisors, whose sum is σ = 813042. Its totient is φ = 813040.

The previous prime is 813023. The next prime is 813049. The reversal of 813041 is 140318.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 739600 + 73441 = 860^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 813041 - 2¹⁴ = 796657 is a prime.

It is a super-2 number, since 2×813041² = 1322071335362, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (813049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406520 + 406521.

It is an arithmetic number, because the mean of its divisors is an integer number (406521).

2⁸¹³⁰⁴¹ is an apocalyptic number.

It is an amenable number.

813041 is a deficient number, since it is larger than the sum of its proper divisors (1).

813041 is an equidigital number, since it uses as much as digits as its factorization.

813041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 813041 is about 901.6878617349. The cubic root of 813041 is about 93.3334849771. Note that the first 3 decimals are identical.

Adding to 813041 its reverse (140318), we get a palindrome (953359).

The spelling of 813041 in words is "eight hundred thirteen thousand, forty-one".