631126713 has 24 divisors (see below), whose sum is σ = 979985952. Its totient is φ = 360240384.

The previous prime is 631126687. The next prime is 631126721. The reversal of 631126713 is 317621136.

It is not a de Polignac number, because 631126713 - 2⁹ = 631126201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631126213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172681 + ... + 176297.

It is an arithmetic number, because the mean of its divisors is an integer number (40832748).

Almost surely, 2^631126713 is an apocalyptic number.

It is an amenable number.

631126713 is a deficient number, since it is larger than the sum of its proper divisors (348859239).

631126713 is a wasteful number, since it uses less digits than its factorization.

631126713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821 (or 4814 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 631126713 is about 25122.2354299931. The cubic root of 631126713 is about 857.7726357850.

Adding to 631126713 its reverse (317621136), we get a palindrome (948747849).

The spelling of 631126713 in words is "six hundred thirty-one million, one hundred twenty-six thousand, seven hundred thirteen".