813106 has 12 divisors (see below), whose sum is σ = 1418958. Its totient is φ = 348432.

The previous prime is 813097. The next prime is 813107. The reversal of 813106 is 601318.

It can be written as a sum of positive squares in only one way, i.e., 442225 + 370881 = 665^2 + 609^2 .

It is a super-2 number, since 2×813106² = 1322282734472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4051 + ... + 4246.

2⁸¹³¹⁰⁶ is an apocalyptic number.

813106 is a deficient number, since it is larger than the sum of its proper divisors (605852).

813106 is a wasteful number, since it uses less digits than its factorization.

813106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8313 (or 8306 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 813106 is about 901.7239045295. The cubic root of 813106 is about 93.3359721476.

It can be divided in two parts, 813 and 106, that added together give a palindrome (919).

The spelling of 813106 in words is "eight hundred thirteen thousand, one hundred six".