631210104 has 128 divisors (see below), whose sum is σ = 2013696000. Its totient is φ = 179459712.

The previous prime is 631210061. The next prime is 631210133. The reversal of 631210104 is 401012136.

It is a happy number.

631210104 is a `hidden beast` number, since 631 + 21 + 0 + 10 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345337 + ... + 347159.

It is an arithmetic number, because the mean of its divisors is an integer number (15732000).

Almost surely, 2^631210104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631210104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006848000).

631210104 is an abundant number, since it is smaller than the sum of its proper divisors (1382485896).

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

631210104 is a wasteful number, since it uses less digits than its factorization.

631210104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074 (or 2064 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 631210104 is about 25123.8950801821. The cubic root of 631210104 is about 857.8104133904.

The spelling of 631210104 in words is "six hundred thirty-one million, two hundred ten thousand, one hundred four".