631641003 has 16 divisors (see below), whose sum is σ = 968879616. Its totient is φ = 358545600.

The previous prime is 631640993. The next prime is 631641007. The reversal of 631641003 is 300146136.

631641003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 631641003 - 2¹⁰ = 631639979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631641007) 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, 96426 + ... + 102767.

It is an arithmetic number, because the mean of its divisors is an integer number (60554976).

Almost surely, 2^631641003 is an apocalyptic number.

631641003 is a deficient number, since it is larger than the sum of its proper divisors (337238613).

631641003 is a wasteful number, since it uses less digits than its factorization.

631641003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199354.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 631641003 is about 25132.4690987575. The cubic root of 631641003 is about 858.0055652999.

Adding to 631641003 its reverse (300146136), we get a palindrome (931787139).

The spelling of 631641003 in words is "six hundred thirty-one million, six hundred forty-one thousand, three".