2513813 has 8 divisors (see below), whose sum is σ = 2583360. Its totient is φ = 2445280.

The previous prime is 2513809. The next prime is 2513827. The reversal of 2513813 is 3183152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2513813 - 2² = 2513809 is a prime.

It is a super-3 number, since 3×2513813³ = 47656282133320976391, 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 (2513803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7928 + ... + 8238.

It is an arithmetic number, because the mean of its divisors is an integer number (322920).

2^2513813 is an apocalyptic number.

It is an amenable number.

2513813 is a deficient number, since it is larger than the sum of its proper divisors (69547).

2513813 is a wasteful number, since it uses less digits than its factorization.

2513813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its digits is 720, while the sum is 23.

The square root of 2513813 is about 1585.5008672341. The cubic root of 2513813 is about 135.9703835452.

Adding to 2513813 its reverse (3183152), we get a palindrome (5696965).

The spelling of 2513813 in words is "two million, five hundred thirteen thousand, eight hundred thirteen".