1042513 has 4 divisors (see below), whose sum is σ = 1056868. Its totient is φ = 1028160.

The previous prime is 1042487. The next prime is 1042519. The reversal of 1042513 is 3152401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3152401 = 7 ⋅450343.

It can be written as a sum of positive squares in 2 ways, for example, as 183184 + 859329 = 428^2 + 927^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042513 - 2⁹ = 1042001 is a prime.

It is a Duffinian number.

1042513 is a lucky number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1042519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7068 + ... + 7213.

It is an arithmetic number, because the mean of its divisors is an integer number (264217).

2^1042513 is an apocalyptic number.

It is an amenable number.

1042513 is a deficient number, since it is larger than the sum of its proper divisors (14355).

1042513 is an equidigital number, since it uses as much as digits as its factorization.

1042513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14354.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1042513 is about 1021.0352589406. The cubic root of 1042513 is about 101.3974795359.

Adding to 1042513 its reverse (3152401), we get a palindrome (4194914).

The spelling of 1042513 in words is "one million, forty-two thousand, five hundred thirteen".