631134347 has 2 divisors, whose sum is σ = 631134348. Its totient is φ = 631134346.

The previous prime is 631134319. The next prime is 631134353. The reversal of 631134347 is 743431136.

631134347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 631134347 - 2¹⁰ = 631133323 is a prime.

It is not a weakly prime, because it can be changed into another prime (631130347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315567173 + 315567174.

It is an arithmetic number, because the mean of its divisors is an integer number (315567174).

Almost surely, 2^631134347 is an apocalyptic number.

631134347 is a deficient number, since it is larger than the sum of its proper divisors (1).

631134347 is an equidigital number, since it uses as much as digits as its factorization.

631134347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 631134347 is about 25122.3873666497. The cubic root of 631134347 is about 857.7760942611.

The spelling of 631134347 in words is "six hundred thirty-one million, one hundred thirty-four thousand, three hundred forty-seven".