631107701 has 6 divisors (see below), whose sum is σ = 734145750. Its totient is φ = 540949416.

The previous prime is 631107679. The next prime is 631107713. The reversal of 631107701 is 107701136.

It can be written as a sum of positive squares in only one way, i.e., 392436100 + 238671601 = 19810^2 + 15449^2 .

It is not a de Polignac number, because 631107701 - 2¹⁰ = 631106677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631107751) 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 5 ways as a sum of consecutive naturals, for example, 6439826 + ... + 6439923.

It is an arithmetic number, because the mean of its divisors is an integer number (122357625).

Almost surely, 2^631107701 is an apocalyptic number.

It is an amenable number.

631107701 is a deficient number, since it is larger than the sum of its proper divisors (103038049).

631107701 is a wasteful number, since it uses less digits than its factorization.

631107701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12879763 (or 12879756 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 631107701 is about 25121.8570372495. The cubic root of 631107701 is about 857.7640225453.

Adding to 631107701 its reverse (107701136), we get a palindrome (738808837).

The spelling of 631107701 in words is "six hundred thirty-one million, one hundred seven thousand, seven hundred one".