631248 has 20 divisors (see below), whose sum is σ = 1630848. Its totient is φ = 210400.

The previous prime is 631247. The next prime is 631249. The reversal of 631248 is 842136.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (631247) and next prime (631249).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is one of the 548 Lynch-Bell numbers.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631247) 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, 6528 + ... + 6623.

2⁶³¹²⁴⁸ is an apocalyptic number.

It is an amenable number.

631248 is an abundant number, since it is smaller than the sum of its proper divisors (999600).

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

631248 is a wasteful number, since it uses less digits than its factorization.

631248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13162 (or 13156 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 631248 is about 794.5111704690. The cubic root of 631248 is about 85.7827579852.

The spelling of 631248 in words is "six hundred thirty-one thousand, two hundred forty-eight".