2513631 has 8 divisors (see below), whose sum is σ = 3414960. Its totient is φ = 1644032.

The previous prime is 2513617. The next prime is 2513653. The reversal of 2513631 is 1363152.

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 2513631 - 2⁷ = 2513503 is a prime.

It is a super-2 number, since 2×2513631² = 12636681608322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2513598 and 2513607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513131) 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, 7746 + ... + 8063.

It is an arithmetic number, because the mean of its divisors is an integer number (426870).

2^2513631 is an apocalyptic number.

2513631 is a deficient number, since it is larger than the sum of its proper divisors (901329).

2513631 is a wasteful number, since it uses less digits than its factorization.

2513631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15865.

The product of its digits is 540, while the sum is 21.

The square root of 2513631 is about 1585.4434710831. The cubic root of 2513631 is about 135.9671020485.

Adding to 2513631 its reverse (1363152), we get a palindrome (3876783).

The spelling of 2513631 in words is "two million, five hundred thirteen thousand, six hundred thirty-one".