631146 has 16 divisors (see below), whose sum is σ = 1296864. Its totient is φ = 204624.

The previous prime is 631139. The next prime is 631151. The reversal of 631146 is 641136.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (81054).

2⁶³¹¹⁴⁶ is an apocalyptic number.

631146 is an abundant number, since it is smaller than the sum of its proper divisors (665718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631146 is a wasteful number, since it uses less digits than its factorization.

631146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885.

The product of its digits is 432, while the sum is 21.

The square root of 631146 is about 794.4469774629. The cubic root of 631146 is about 85.7781373435.

It can be divided in two parts, 631 and 146, that added together give a palindrome (777).

The spelling of 631146 in words is "six hundred thirty-one thousand, one hundred forty-six".