631084109 has 8 divisors (see below), whose sum is σ = 660713760. Its totient is φ = 601979056.

The previous prime is 631084093. The next prime is 631084121. The reversal of 631084109 is 901480136.

It is a happy number.

631084109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 631084109 - 2⁴ = 631084093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631084169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128687 + ... + 133500.

It is an arithmetic number, because the mean of its divisors is an integer number (82589220).

Almost surely, 2^631084109 is an apocalyptic number.

It is an amenable number.

631084109 is a deficient number, since it is larger than the sum of its proper divisors (29629651).

631084109 is a wasteful number, since it uses less digits than its factorization.

631084109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262299.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 631084109 is about 25121.3874815863. The cubic root of 631084109 is about 857.7533341314.

The spelling of 631084109 in words is "six hundred thirty-one million, eighty-four thousand, one hundred nine".