1044013 has 4 divisors (see below), whose sum is σ = 1048060. Its totient is φ = 1039968.

The previous prime is 1043981. The next prime is 1044019. The reversal of 1044013 is 3104401.

1044013 = 722² + 723².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3104401 = 457 ⋅6793.

It can be written as a sum of positive squares in 2 ways, for example, as 522729 + 521284 = 723^2 + 722^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044013 - 2⁵ = 1043981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043984 and 1044002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044019) 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, 1608 + ... + 2161.

It is an arithmetic number, because the mean of its divisors is an integer number (262015).

2^1044013 is an apocalyptic number.

1044013 is the 723-rd centered square number.

It is an amenable number.

1044013 is a deficient number, since it is larger than the sum of its proper divisors (4047).

1044013 is an equidigital number, since it uses as much as digits as its factorization.

1044013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1044013 is about 1021.7695434882. The cubic root of 1044013 is about 101.4460875087.

Adding to 1044013 its reverse (3104401), we get a palindrome (4148414).

The spelling of 1044013 in words is "one million, forty-four thousand, thirteen".