631042367 has 2 divisors, whose sum is σ = 631042368. Its totient is φ = 631042366.

The previous prime is 631042361. The next prime is 631042387. The reversal of 631042367 is 763240136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 631042367 - 2¹⁶ = 630976831 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631042361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315521183 + 315521184.

It is an arithmetic number, because the mean of its divisors is an integer number (315521184).

Almost surely, 2^631042367 is an apocalyptic number.

631042367 is a deficient number, since it is larger than the sum of its proper divisors (1).

631042367 is an equidigital number, since it uses as much as digits as its factorization.

631042367 is an evil number, because the sum of its binary digits is even.

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

The square root of 631042367 is about 25120.5566618258. The cubic root of 631042367 is about 857.7344221625.

The spelling of 631042367 in words is "six hundred thirty-one million, forty-two thousand, three hundred sixty-seven".