1012813 has 4 divisors (see below), whose sum is σ = 1016928. Its totient is φ = 1008700.

The previous prime is 1012811. The next prime is 1012829. The reversal of 1012813 is 3182101.

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 1012813 - 2¹ = 1012811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663 + ... + 2188.

It is an arithmetic number, because the mean of its divisors is an integer number (254232).

2^1012813 is an apocalyptic number.

It is an amenable number.

1012813 is a deficient number, since it is larger than the sum of its proper divisors (4115).

1012813 is an equidigital number, since it uses as much as digits as its factorization.

1012813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4114.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1012813 is about 1006.3861088072. The cubic root of 1012813 is about 100.4252887309.

Adding to 1012813 its reverse (3182101), we get a palindrome (4194914).

The spelling of 1012813 in words is "one million, twelve thousand, eight hundred thirteen".