1030813 has 12 divisors (see below), whose sum is σ = 1216380. Its totient is φ = 870912.

The previous prime is 1030811. The next prime is 1030817. The reversal of 1030813 is 3180301.

It can be written as a sum of positive squares in 2 ways, for example, as 480249 + 550564 = 693^2 + 742^2 .

It is not a de Polignac number, because 1030813 - 2¹ = 1030811 is a prime.

It is a super-3 number, since 3×1030813³ = 3285949734094733391, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5245 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (101365).

2^1030813 is an apocalyptic number.

It is an amenable number.

1030813 is a deficient number, since it is larger than the sum of its proper divisors (185567).

1030813 is a wasteful number, since it uses less digits than its factorization.

1030813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1030813 is about 1015.2896138541. The cubic root of 1030813 is about 101.0167276153.

The spelling of 1030813 in words is "one million, thirty thousand, eight hundred thirteen".