631113 has 16 divisors (see below), whose sum is σ = 986496. Its totient is φ = 351360.

The previous prime is 631061. The next prime is 631121. The reversal of 631113 is 311136.

It is not a de Polignac number, because 631113 - 2¹² = 627017 is a prime.

It is an Ulam number.

631113 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 631092 and 631101.

It is not an unprimeable number, because it can be changed into a prime (631133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (61656).

2⁶³¹¹¹³ is an apocalyptic number.

It is an amenable number.

631113 is a deficient number, since it is larger than the sum of its proper divisors (355383).

631113 is a wasteful number, since it uses less digits than its factorization.

631113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784.

The product of its digits is 54, while the sum is 15.

The square root of 631113 is about 794.4262080269. The cubic root of 631113 is about 85.7766423234.

Adding to 631113 its reverse (311136), we get a palindrome (942249).

It can be divided in two parts, 63 and 1113, that added together give a triangular number (1176 = T₄₈).

The spelling of 631113 in words is "six hundred thirty-one thousand, one hundred thirteen".