631126130 has 32 divisors (see below), whose sum is σ = 1194499440. Its totient is φ = 239742720.

The previous prime is 631126103. The next prime is 631126147. The reversal of 631126130 is 31621136.

It is a happy number.

631126130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 159845449 + 471280681 = 12643^2 + 21709^2 .

It is a super-3 number, since 3×631126130³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 631126096 and 631126105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149 + ... + 35528.

Almost surely, 2^631126130 is an apocalyptic number.

631126130 is a deficient number, since it is larger than the sum of its proper divisors (563373310).

631126130 is a wasteful number, since it uses less digits than its factorization.

631126130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35774.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 631126130 is about 25122.2238267236. The cubic root of 631126130 is about 857.7723716640.

Adding to 631126130 its reverse (31621136), we get a palindrome (662747266).

The spelling of 631126130 in words is "six hundred thirty-one million, one hundred twenty-six thousand, one hundred thirty".