2042513 has 4 divisors (see below), whose sum is σ = 2228208. Its totient is φ = 1856820.

The previous prime is 2042489. The next prime is 2042531. The reversal of 2042513 is 3152402.

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 2042513 - 2⁶ = 2042449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2042491 and 2042500.

It is not an unprimeable number, because it can be changed into a prime (2042213) 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, 92831 + ... + 92852.

It is an arithmetic number, because the mean of its divisors is an integer number (557052).

2^2042513 is an apocalyptic number.

It is an amenable number.

2042513 is a deficient number, since it is larger than the sum of its proper divisors (185695).

2042513 is a wasteful number, since it uses less digits than its factorization.

2042513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185694.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2042513 is about 1429.1651409127. The cubic root of 2042513 is about 126.8785703574.

Adding to 2042513 its reverse (3152402), we get a palindrome (5194915).

The spelling of 2042513 in words is "two million, forty-two thousand, five hundred thirteen".