631226 has 4 divisors (see below), whose sum is σ = 946842.
Its totient is φ = 315612.
The previous prime is 631223. The next prime is 631229. The reversal of 631226 is 622136.
631226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (631223) and next prime (631229).
It can be written as a sum of positive squares in only one way, i.e., 561001 + 70225 = 749^2 + 265^2
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 631198 and 631207.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 631226.
It is not an unprimeable number, because it can be changed into a prime (631223) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157805 + ... + 157808.
2631226 is an apocalyptic number.
631226 is a deficient number, since it is larger than the sum of its proper divisors (315616).
631226 is a wasteful number, since it uses less digits than its factorization.
631226 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 315615.
The product of its digits is 432, while the sum is 20.
The square root of 631226 is about 794.4973253574.
The cubic root of 631226 is about 85.7817614183.
The spelling of 631226 in words is "six hundred thirty-one thousand, two hundred twenty-six".