4513631 has 4 divisors (see below), whose sum is σ = 4659264. Its totient is φ = 4368000.

The previous prime is 4513627. The next prime is 4513637. The reversal of 4513631 is 1363154.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4513631 - 2² = 4513627 is a prime.

It is a super-2 number, since 2×4513631² = 40745729608322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4513597 and 4513606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4513637) 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, 72770 + ... + 72831.

It is an arithmetic number, because the mean of its divisors is an integer number (1164816).

Almost surely, 2^4513631 is an apocalyptic number.

4513631 is a deficient number, since it is larger than the sum of its proper divisors (145633).

4513631 is a wasteful number, since it uses less digits than its factorization.

4513631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145632.

The product of its digits is 1080, while the sum is 23.

The square root of 4513631 is about 2124.5307717235. The cubic root of 4513631 is about 165.2628928200.

Adding to 4513631 its reverse (1363154), we get a palindrome (5876785).

The spelling of 4513631 in words is "four million, five hundred thirteen thousand, six hundred thirty-one".