631004041 has 4 divisors (see below), whose sum is σ = 664214800. Its totient is φ = 597793284.

The previous prime is 631004029. The next prime is 631004071. The reversal of 631004041 is 140400136.

It is a happy number.

631004041 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 631004041 - 2⁵ = 631004009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 33210739 = 631004041 / (6 + 3 + 1 + 0 + 0 + 4 + 0 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631004021) 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, 16605351 + ... + 16605388.

It is an arithmetic number, because the mean of its divisors is an integer number (166053700).

Almost surely, 2^631004041 is an apocalyptic number.

It is an amenable number.

631004041 is a deficient number, since it is larger than the sum of its proper divisors (33210759).

631004041 is a wasteful number, since it uses less digits than its factorization.

631004041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33210758.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 631004041 is about 25119.7938088671. The cubic root of 631004041 is about 857.7170571398.

Adding to 631004041 its reverse (140400136), we get a palindrome (771404177).

The spelling of 631004041 in words is "six hundred thirty-one million, four thousand, forty-one".